Ill start by saying I've never thought much of people working in a liquor store. (I mean hey would you) But these people know their stuff (if i knew booze they way they did I'm sure id be drunk 24/7).
So first ill say what every one else has, huge selection tons of beer, tons of wine, go on selected days and sample wine/liquor... yadda yadda.
Ive had excellent customer service here both times I've ever needed to ask for help in a liquor store.
Once i needed a thank you for a friend who really did me a favor... the aged scotch kind of favor. knowing nothing of actually enjoying straight hard alcohol (wait we dont drink this in shot glasses) i had no idea what to get... I told him i wanted to keep it under 300, and he pointed me to the glenlivet 21. It was a fair amount under my price range, which i really respect... I know a lot of places would show me their bottle that cost 299.99.
And once after having an amazing moscoto at a dinner where i ordered a wine pairing i decided i needed this asap... I took a picture of the bottle, lees didn't have it, but the girl had explained what too look for (make sure its a d'asti, the region of italy it comes from) in the wine... she pointed us to a 16 dollar bottle that was amazing!