They have a really good selection of nerdy less known games. Ok selection of popular games--not that great, actually, and it's hard to find stuff.
It's hard to get assistance from store staff and you're kind of expected to find your own way around. I would suggest going to a different store for your run of the mill games, because it'll be easier to find them, and you'll get a bit of help too.
I don't know if this is typical, but when I went, the store was full of teenage boys and it smelled pretty bad. This was on a warm day, so maybe get a fan?