I'm on my third pair and:

Pros:
* SOOOO Comfy when new! Feel heavenly on my feet!
* Wide enough for my wide feet!
* Looks nice! I feel kind of ballerina or princess like in these
* Great in the summer for keeping feet safe and comfy without being too hot

Cons:
* Wear out fairly quickly (4-6 months depending on use), both the pad gets worn down and the sides eventually split for me
* They run large, so I have to buy a size down and kind of break them in. There is a small window where they are both soft and well fitting.
* The bottom can get slick at times
* Can be a little too light during the winter.