I've been subscribing to this box for two and a half years, and I look forward to it every month. I always enjoyed cocktails at bars, but would stick to ones I knew I liked. I decided to subscribe to this to expand my palate and see what I might like that I wouldn't think of trying. You get to try liquors from different companies and see which appeal. There have been several recipes that I ended up getting the ingredients for so I could keep making them, like a saffron syrup to make a Saffron Drop vodka drink. Also it has been a fun way to learn home bartending skills.
I'd say my only hesitation is if there are a lot liquors you don't like, you should look at how often they end up in recipes they send. Personally, tequila gives me headaches, so I tend to use those as gifts for friends. They always go over really well as gifts, though, so it's a win-win!