The pizza is the best item on the menu. The ambience is cute; the year round Christmas lights add a touch of festivity. Greenbush is a, "downstairs affair, nestled in the basement of the Italian Workman's Club, you would probably never know it's located there, unless someone told you.
The service is dicey. When it's busy, often the wait for your food is long. One of the downsides, is their policy NOT to seat you unless your entire party is there. This means, while the rest of your group is parking, 4 more tables will walk in and be seated. You can't even sit at the table and enjoy a beverage, while you're waiting for your party. There is not sufficient seating for waiting for atable, and often you end up standing.