I went here on a Friday for a drink with some friends and was pleasantly surprised by the place. It was busy and full of people enjoying themselves. I love the concept of the specializing in both beer and coffee, the best of both worlds. I wasn't in the mood for either of those on the night that I went, but I did appreciate their beer selection and was happy with the Joel Gott Sauv Blanc instead.
I didn't expect the live music that was performing, but I did enjoy it. Although a bit loud, considering the acoustics of this place (think: gutted auto repair shop with metal and wood tables) I can still appreciate some live acoustic covers. Make sure to dress semi-warmly if you go at night during this time of year, since it is pretty much completely open.
Bonus: I think we were the only people that realized that there are 2 parking spots right in front of Sip (the lot in the back was full).