Coffee was good and there was lots of fun Harry Potter decor! The staff was friendly. It's still fairly new though, and since it's the only Harry Potter themed place around, it was SUPER busy. We waited in line for just over an hour. Wouldn't have done that if it weren't a Harry Potter place. :)
They were sold out of butter brew, though, which was very disappointing, but what can ya do? We'll come back in a month or two to try butter beers, once the newness madness of it wears off a little.