I've both bought and sold here. It's a good place to find cheaper but still good quality items. Sometimes the tags are even still on.
We've sold clothes and a toy so far, and bought clothes and toys as well. I usually opt for store credit when I sell since you get more $ that way.
The people who work there have been friendly every time I've gone, which is a huge plus for me. There's a little play area with a house and Legos for kids, which is great! I just wish I could find a stand-alone mobile without the rest of the set. Apparently they don't sell them that way though.