Great selection here and always lots of new inventory coming in daily. My first trip here, they paid me $124 for 28 items, the majority of which were athletic wear which they love. Especially Lululemon ($3-$4 per piece) and Nike and hooded sweatshirts which they find always sells well with their young clientele.
Best tip I can give is to follow their Instagram account to be alerted of cool finds by staff which you can put on hold for pick up (varies by store location) and to take advantage of the trade-in option if you have anything to sell just don't be upset if they refuse to buy your clothing as they only purchase styles that will sell and will only give you approximately 30% of what they will price it for in store.
ps the staff here are extremely energetic and friendly, and not to mention super photogenic.