Went to Grist House for the first time with two friends recently and had a great evening. The atmosphere is very relaxed, and the beers and Driftwood pizza were excellent were excellent.
The seating is mostly outdoor, picnic table style. It's also pet-friendly, and several folks were there with their dogs on-leash, all very friendly.
Highly recommended as a low key dinner evening with friends, or just to hang out before or o after dinner for great beer.