In terms of selling, you get pennies for what you're offering even if the items are new and have the tags still attached. If you do shop here, it's worth getting the store credit because it's 20% versus a 10% cash pay-out. Also, for a bag of 10 items expect an offer for only 1-3 items. You're going to be carrying that bag right on out. I understand styles vary and they might be limited due to the amount of stock they can carry, but is isn't worth the trouble. Go to Plato's closet instead which will give you a higher pay-out. If you have friends, just give them the clothing or donate it to your local salvation army.
In terms of buying, they have some nice items but you really have to search. Their best pieces are usually in the display window so check that out first. It can be very hit and miss. Sometimes you can find very nice brand items for about half the cost. If you happen to pass through it might be worth browsing through, but it's never worth trekking to.