I have been two times to Comet. The first time I chose one of their pourovers which I really liked. The second time though I had an espresso which I did not like at all and did not even finish, as it was too sour, or acidic, for my taste. I first thought that maybe something was wrong with their machine, but I learned from friends that sour espresso is somewhat of a trend in more sophisticated coffee places. Coming from Europe, I was not aware of this and I cannot say that I like this. Giving a nice coffee place a bad review based on this seemed kind of unfair to me, so I settle for four stars. The arcade is very nice, and Comet's stuff is very friendly. Let's hope that the sour espresso thing is over soon!