Look at the picture I uploaded of my red shoes!
I've been an avid/casual runner for over 12 years, and I usually run every day for a solid 40mins.  I've always used a traditional heel-heavy running shoe, and through the years I've trained myself to land flat-footed (a good mid-foot landing).  ...With that said, I didn't know until a month ago that these "minimal running shoes" even existed, so finally today I went to a local shoe store and bought a pair of Minimus Zero.

Before running in them, be sure to remove the "size" sticker on the inside of each shoe, it's slippery and will reduce your in-shoe traction, and if you aren't wearing socks it will eventually begin to scratch against your skin due to the stickers sharp edges.

After buying the shoes I ran ~2 miles, and wow, what a huge surprise they turned out to be!  First off, I've always worn an 11.5D, and that's the size I got for these shoes too; I'm wearing socks because I don't want to bother with blisters/sweat, so I can't [yet] comment on how they run w/out socks (see 'UPDATE 2' below to learn about sock-less running).  ...But so far I'm really enjoying them.  But wow, the muscles in my feet and calves were not accustomed to this new form of shoe.  While running in these shoes for the first time, I had to stop and walk twice as often as I normally would in traditional shoes.  I read the reviews here, and over at the NB website, and it's 100% true what they say about "being focused on your feet."  ...For my 1st run, I was constantly thinking/analyzing my footing, and it was rather enjoyable, because I was experiencing a totally new form of running!

After ~10mins into my run I had to stop and tighten the laces, which made them more snug to my feet.  ...Now that I've mentioned how the shoes feel: I gotta say the heel feels excellent, and the width feels good too.  I believe that my true foot size is actually 11D, and while wearing socks I have a small amount of "wiggle room" for my toes, and I'm really wondering if I should have gotten a size "11D" instead of my traditional 11.5!  One thing I notice is how "slippy" my toes feel when wearing socks, I'm no expert on shoe-mechanics but it feels like my socks have very little traction against the bottom of the shoe, because I'm able to rub my toes [wearing socks] against the bottom as if it were a smooth as a marble/granite surface; it's just different, but thankfully it hasn't negatively impacted my running performance (just an observation).

It was easy to feel the cracks between the sidewalk, but it's not like you're gunna be able to feel the peaks & troughs in a paved road (unless that road is some ghetto mix of tar & gravel).  Overall I really like these shoes, and I don't see myself ever wanting to go back to a heal-heavy shoe; but of course these shoes aren't for everyone.  These shoes are for people who are self-aware, and able to adapt themselves to improve their personal running form: these shoes shouldn't be giving to young kids who are more or less oblivious to their environment & self well-being: because they'll just run off and begin playing as usual thinking the shoes are just like any other pair, and one hour later they'll come back crying "my feet hurt, why is the sky blue, what are hotdogs made of, etc..."  These shoes are intended for people who want to improve themselves, because there's a big chance that you'll be just like me, and your feet & calves will be amazed at how different they feel versus a traditional shoe (and in a ton of pain while transitioning).

I gave these shoes 4 stars because (for my foot shape) I'm slightly concerned that the laces don't reach far enough towards the front of the shoe; when I tighten the laces I don't feel it tightening in all the locations that I would prefer them to - just mainly gets tighter around the arc of my foot (I'm not flat-footed, it's really just a preference IMO).  As a side note, the laces are a bit too long for my taste, but just double-knot them and it's all good.  I also enjoy that the laces are "flat" in design, as opposed to a thick rope shape (which would tend to dig into the arc of your foot).  NewBalance really made a great shoe, and I strongly recommend you go out and experience these for yourself, because I'm betting you'll be equally impressed!

Pros:
+ [from UPDATE #4 below] Have owned these for 9mos, and run ~800mi on them with minimal wear!
+ Lightweight build.
+ Well ventilated.
+ Snug fitting heel, for balanced mid-foot landings.
+ Flat laces (as opposed to bulky-rounded laces).
+ These shoes will quickly teach you how to run with good form, and if you ignore its' teachings then your calf-muscles will put you in a great deal of pain for many-many days/weeks afterwards...
+ A fair price IMO.
+ Can run without socks (but may be more prone to blistering/sweating/slipping).
+ Can feel most surfaces though the base of the shoe, helping to keep you in-tune with your feet.

Cons:
- Cannot run during any amount of rain, or water on the road; your feet will begin to feel wet within 5mins guaranteed.
- Laces are a bit too long, requiring me to "double knot" them (hardly a Con honestly).
- No reflective sticker on back of shoe for nighttime running (big safety concern IMO).
- If the shoe is too large for your foot, your socks will have a tendency to slip on the in-sole.
- ...This might just be my foot-type, and shoe size, but I feel the laces don't reach forward enough towards your toes -- I'd prefer a tighter fit around the front of my foot, but I can't get it (I might require a 0.5 size smaller of this shoe than I normally wear; but it's a very-very minor problem.

UPDATE 1: It's now 3 days since my initial run, and my calf muscles are still sore from my first run!  ...And I've still been running each day (despite the soreness).  These shoes are completely different from traditional shoes, and I'm positive that they'll totally reshape your calf muscles, and improve your barefoot walking-form.  I can't believe the running industry didn't capitalize on this form of shoe before; it boggles my mind, and honestly seems rather ridiculous to me.  I swear, I feel like all the years I've been running -prior to getting these shoes- were utterly wasted!  I'll never run in a traditional shoe ever again; oh how ignorant I was just 3 days ago, jeeze!

UPDATE 2: Alright, it's now been 1 month!  And I finally ran in them without socks, and I gotta say they are most definitely made to be worn without socks!  When wearing socks my toes slip around a lot, and my foot probably does a lot of moving as well; but when I wear these barefoot my feet tend to slip a bit less (NOTE: when wearing socks my feet tend to "slip/travel" ~1 millimeter).  Without socks I feel a bit more grounded/secure when running, and can run a bit more solidly.  ...I like them without socks, but my toes are way more prone to blisters without socks, so I do NOT see myself running barefoot often.  I still believe these shoes are amazing, and they are probably the only "type" of shoe that I'll ever recommend to another runner (if asked).  If you don't own a pair of these yet, you're really-REALLY missing out.  5 stars for "you must try them," (but still 4 overall due to my personal preference).

UPDATE 3: It's now been 6 months, and I've uploaded pics that show the wear on my shoes.  I run ~5 times a week, averaging ~40mins, and I run on cement (sidewalks/street).  The ware is pretty low, even around the heel!  I expect them to last another 6 months.

UPDATE 4: Been 9 months, and have run ~800mi on them, and there is very little wear.