I like 'em. I've ordered a shirt for promo purposes myself and it's still bright and soft and all-around one of my best shirts. I've also ordered a journal and a scarf of my art to gift people and they turned out BEAUTIFUL.
As a seller, I've done all right out of there. It's just a sale here and there mind you in my case, but it's always been very helpful. Passive income is THE BEST. And since they've changed it now to pay you more often it's way better in that respect too. Now I think I actually prefer it over Society6.
On a final note, I had a couple of pieces on there once that they determined were infringing someone's IP (one had a rubik's cube in it for example). I got a polite notice and didn't even have to take it down myself, and heard no more about it since I complied. It was way better than the one time on DA someone erroneously reported a piece of mine and I had to go through a bunch of BS to prove I actually drew it. Thank goodness for progress shots. 