I would like to give them zero stars, but alas and curse them, they will get one!
The short story: don't waste your time at Durst, go to Champaign Cycle instead - they are awesome.
The long story:
I went here while I was a student, in order to get an inner tube. The gentleman (I use this term loosely) who assisted me would not condescend to help me understand what I could do to prevent further flats (I know now: keep them inflated to about 3x the pressure I had when I got the flat). As a greenhorn, I picked up some tire slime (a vile flat tire prevention product - complete waste of money). The clerk took my money, and then, _as he handed me the receipt_ derided the product as the useless s*** that it is.
They will take your money, laugh in your face, and they know that they can continue because they have a constantly rotating supply of suckers (students).
I will say that there was (maybe still is) one cool guy (kinda young). God help him.