This cafe is a nice addition to the Shaker Square environment. It shares space with the popcorn store next door, so there is a bigger seating area than it appears when you first walk in.
They serve Phoenix Coffee, although in my opinion, not as well as the Phoenix stores nearby do. There is free wifi and the baristas are friendly.
My biggest complaint is the limited hours. They close fairly early during the week (as does much of Shaker Square, it seems) so I don't have a lot of incentive to come over to Dewey's unless I'm around for something else.