I've driven by this DD half a dozen times and every time I have an impulse to turn in and get a lahge regulah. That's a large coffee with 2 cream and 2 sugar for you unfortunate souls that have not lived in the Boston area. DD rules the Great Northeast. Near my office back on route 1 in MA (you have to blort the "MA" out like a sheep) you could drive a mile and count not less than 6 Dunkin' locations.
I tried DD once since moving to the valley and it was bad. The coffee, not the donuts, they were never really good. So when I tried this one for the first time I was expecting overdone coffee again. I was not leaving the drive-up until I had tasted the brew. It was what I have come to expect from DD...fresh, decent coffee, piping hot.
It did remind me of my review of DD corporate some time ago:
http://www.yelp.com/biz/dunkin-donuts-hq-canton#hrid:fmIIA0EHEpU7FSoEHrioEw/src:self