We just got back a week ago. We really liked Furnas and stayed there four nights. We were there to walk. The walk around the lake at Furnas was great. We drove to Sete Cidades to do the caldeira walk and really enjoyed that one, even though it was a much longer drive than it would have been from Ponta Delgada. We were in Ponta Delgada three nights, two at the beginning and one at the end. (We also went to Sao Jorge, but we had two weeks.) There were some very interesting churches in Ponta Delgada, and it's true that there was more choice of restaurants than in the smaller towns. But it is a cruise ship port and when the boats are in, it is overwhelmed during the day. The smaller towns seemed prettier. We spent a day in Ribeira Grande and we had fun, but I don't think I would have wanted to stay there overnight. The most interesting place there, the Emigration Museum, is closed weekends, but we went out to Tuka Tula bar and had a nice lunch and watched the surfers (it was a Saturday).