I got these shoes after my Reebok RunTones bit the dust (one air pocket burst after only a few months of use).  I do a fair amount of running - on the pavement and trails as well as hitting the cardio machines at the gym and I'm always looking for a comfortable and supportive sneaker.

This shoe had great reviews and the price dropped to $50 on the grey/pink so I went for it.  They arrived quickly and I took them for a pavement run the same day.  I have to say - it is probably one of the best running shoes I've owned.  I wear a half size larger in sneakers so my typical 10.5 worked fine but was a bit on the large side.  There's a decent amount of support in the arch - I usually wear insoles for support and didn't need them in these.  When running, the impact on my joints is much less than with other shoes.  The zig soles absorb a lot of the shock so there is less jarring on my ankles, knees and hips.  I can't say that I feel the 'transfer of energy from the sole to my legs' but I didn't believe that hype to begin with.  The shoe itself is also very light and the sole is very flexible (the flexibility reminds me of the Nike Free but with more support). I've worn them on the cardio machines at the gym and they are fine as well (I don't use the treadmill though) but their best use will be running outside.

All in all I love these sneakers in the very short amount of time that I have had them.  The colors are a little bright but I can't fault them for marketing the zig sole - your eye is definitely drawn to it!  Plus you can't beat the price when it drops so low!  I know I will be buying another pair very soon!

UPDATE - I bought the purple pair when the price dropped as well so I could have one pair for the gym and one pair for trail running.  The purple is nicer in person and doesn't seem as 'bright' as it does in the picture.  But, even though I ordered the same size, they feel about a half size smaller than the grey pair.  Very strange.  It is fine for me since I was thinking of going down a half size (to my normal size of 10) but decided not to in the end.  But something to keep in mind if you are between sizes!