Pros: cheap price, high quality, 100+ shades, won't chip (unless u have like 10 layers duh :P), last a decent time,
Cons: some colors sell out very quickly and it takes a while til they get restocked

I personally own over 20 bottles from various collection from this brand. I reeeeaaally love the variety and they always come up with new stuff. Can't go wrong with the Eco Nail Colors.
Also love they Peel Off Base coat!