I'm about as far from a genuine cowboy as you can get (indian with a british accent) so I was apprehensive about the Hen initially. My first visit there was on Jeff's birthday (I wasn't responsible for his inebriation, no matter what his review says) which was a complete blast. I learned all about buckle-bunnies (girls who chase cowboys) and posers (non-cowboys in the gear). I also learned that ordering a dirty martini in this environment will get you funny looks.
Suitably enlightened, I spent my second visit relaxing, ordering beers and attempting to order a bite to eat. While the food is tasty bar-fare (probably contains trans-fats) it takes forever to get served. I'm sure this is a consequence of Saturday night craziness, but still, rather annoying.
I also learned that most of the songs that the band was singing were covers of well-known music as opposed to songs they made up (known in other circles as original composition.) Shows how much I know about the genre...
All in all, it's a ton of fun, no matter what kind of music you like. People are genuine, friendly and the ratio of women to men on the dance floor is spectacular. If you're not afraid to shake your stuff, you could do a lot worse.