I'm talking about the little hot dog stand in front of the golf course on Rte. 9 toward Williamsburg. They've just reopened for the season. Recalling the fresh-cut fries from last year, I stopped there for lunch the other day. Fries were delicious as always, although they never seem to get quite crispy enough for me. Still, I have yet to find non-frozen fried spud product in my own area (northeastern MA) so Donnie's are always a treat.
FWIW: I can't advise you on the dogs and burgers, but the one sample of soft serve I had last summer was not worth a repetition.