I have the same complaint as all who have negative reviews; they rejected things I sent which were much nicer and in better condition than things I've ordered. The amount they credit is laughable and not worth it - I'd rather pay shipping to them (I'm sure they have to pay a ton of shipping on things people send they can't use) than get $1 for a $50 Easter dress, worn once.
Shopping is fine - it's well organized and sortable. I still won't buy anything that isn't on sale on the site, because I tend toward basics and those are overpriced IMHO.