Let me start by saying if you've been to one liquor store you've been to them all. With that said what makes this one stand out to me is the location. You see i have no problem finding alcohol in my neighborhood. However I typically find that the alcohol in my neighborhood is being sold to me by a bartender or waiter, both of whom don't take kindly to me taking my beverage to go.
Downtown Liquor is just the opposite! They are located less than a block away from my apt and have an awesome selection of beer, wine and liquor all available to go! They will even package your purchases in the infamous "Brown Bag" made famous by liquor stores world wide. Also they're open late (I believe until 1am on the weekends though they only sell beer and wine after 10.) This is such a convenience for those nights you may want a drink but don't feel like sitting in a bar or restaurant or when entertaining friends and you need to restock your bar before your guest arrive.
On my last trip I noticed a sign stating that they host wine tastings every Friday from 5:30-8 with several vendors bringing in their latest products for customers to enjoy. Though I haven't been yet I may have to work this in to a future happy hour.
To sum it up Downtown Liquor is a great place for anyone living downtown to go stock up on all their adult beverage needs.
One side note: I found it quite odd when i asked the cashier for her opinion on two different vodkas and she responded " I don't know I don't drink." It was like asking a car salesman about a car and him responding " I don't know I don't drive."