Slow. But polite. We stopped by on what was, I believe, the 4th or 5th day this location was open. My brother was visiting and he LOVES donuts from Dunkin (and lamented the closing of the last Madison location in the late 90s), so we thought we'd pull through the drive-through and grab a quick dozen. A dozen assorted and 2 coffees took nearly 10 minutes. HOWEVER, the gal at the window repeatedly apologized and let us know they had been a bit overwhelmed by demand that day. She was polite and smiley even as her coworkers were hurriedly running around filling orders that they seemed to be a little low on stock for.
My thought is that this location is brand new and is still cutting its teeth. Our donuts and coffee were delish - as expected. They just took forever. And the line of cars behind us was backing up. Once this location gets a bit more experience, I'm sure the service times will improve and, hopefully, I'll be able to boost the star rating on another visit.