The Commuter sandwich is excellent. This place always seems to be busy whenever the time or day, I'm in town. They have pretty good dessert and their black iced tea is really good. The delicious homemade english muffins are also sold in a bag so you can take them home and enjoy them.
The store is adorable, they have all these really cool tchotchkes. I once found a little lego like puzzle with teeny tiny pieces which when assembled made a 3D violin.
The service isn't super great, I gave it 4 stars mainly because of the food.