I don't know if I could write a fair review based on having had one hot chocolate there, so please proceed with caution.
I went with a girlfriend on a Friday night. We got there at about 8.15, so we only had 45 minutes before they closed. The waitress was really, really friendly and we didn't feel like she wanted to kick our butts out when it was nearly 9 either. The decor is adorable. Lots of hanging lightbulbs placed in proximity with each other somehow create a pleasant effect. Very artsy indeed. The vintage wood chairs and tables only add to the charm. I like!
However, the hot chocolate was disappointing. First it wasn't warm enough, so it was hard to get those sugar cubes to dissolve. Second, the taste just didn't cut it. Nowhere near what can be called hearty and full-bodied as what hot chocolates should be.
I would go back though, for sure. Just not for the hot chocolate.