I don't have a whole lot of experience with liquor stores, but have always been pleased here. The staff are always nice, helpful, and non-intrusive.
I once went with my boyfriend, who expressed a desire for a certain beer that they didn't have. The dude behind the counter immediately said that they would order it. Lo and behold, the next time we went, there it was. We proceeded to buy lots of it. Everything after that is kind of a blur.