Purchased these on a whim during Black Friday lightening deals.

I'm enjoying them.  Typically will wear them around the house in place of slippers on the weekends.  The sole is good for popping outside if I need to.

Haven't worn them to work yet.  My office is very casual with a bunch of folks wearing those silly slip-on toe shoes.

I'm concerned about their wear-ability on cobblestone and crooked downtown Seattle sidewalks.

I don't believe they'd be very waterproof.

Sizing:
I'd ordered both size 12 and 13 men's as I knew I wouldn't get another shot at this discounted price.

The size 12 might be on the small side.  Couldn't event think of squeezing my foot into them.

I typically where size 13's but with a slip on shoe I was concerned about it being just large enough that the shoe would flap when walking in them.  Thankfully this isn't the case.  They're comfortably snug.

Pros:

Lightweight - Very light

Comfort - Pleasantly surprised with how comfortable they are.
I'll sometimes slip a silly little gel insert into some of my shoes.  This hasn't been the case with these.

Random Thoughts:

Style - They're a bit more like loafers than I was hoping for but they sure are comfortable.

No Arch - I don't think this would be a good shoe for someone with arch concerns as the sole is flush with the ground.

Durability - Not sure how long these will last.  I believe they're made from recycled materials.  Maybe more from recycled cardboard but the soles aren't made from recycled tires.

If you've ever worn ku-fu shoes these would be right for you.