My husband and I stopped in after a Rockies game to hear the live music we know is regularly playing. The main part of the bar is pretty small and was so crowded that we went to the other side. There was a server there who was right on top of things, so we never had to wait to order. The music wasn't as loud there, so we could talk, but you could still hear pretty well.
They only take cash here, but there is an ATM if you forget to bring cash before you arrive.
The restroom is only one toilet, so there can sometimes be a wait, but it's not a big deal. Actually, you wait right next to the stage, so you get a great view of the band. Not too shabby.