I haven't been, but I was surprised reading how it is laid out. To me the joy of a donut shop is going in and picking "one of those.....two of those". I guess you can't even see what their donut selection is, you just ask "do you have an old fashioneds? Any apple fritters?".
I don't buy donuts very often, like maybe once every couple of years and I prefer the Mom and Pop shops. In other cities I know some are big Dunkin Donuts fans, but I have never found their donuts or coffee to be anything special.