3 stars for generally helpful staff... the first and second times I went in, I was assisted by an older gentleman and a younger guy with small gauges in his ears, really decent people who genuinely wanted to share their knowledge and love for vaping, but when I went in earlier today (around 6ish), I was the lucky recipient of a snobby punk kid's attitude problem (though the blonde girl with glasses seemed a lot friendlier and more approachable). He seemed quite young, though, so to give him the benefit of the doubt, he probably doesn't get that you can't treat your customers like you can your dumb-assed friends. Also deducting a star for their prices -- I get you need to turn a profit to stay in business, but seriously $22 and change for a bottle of juice I can buy online for roughly half the price including shipping?
If budget is a concern then definitely check out Cool Vape or Smokers Corner in the SW, but if you don't mind paying a premium for potentially good service then check this place out.
Edited to include that One Stop Vape shop lets you sample different flavours. I swear their little sample stick is better than my EVOD Mega and Kangar AeroTank v2 tank set up.