Re: Sosua by the sea/Casa Marina Beach-Reef
I also had a plumbing problem when I stayed there (it's in the report). That and the air conditioner were the biggest problems I had though.
What I liked about it was the location, the look and layout, the bar (all top shelf available), the food (was very good), the ambiance (very quaint), the service (it blew away the Casa Marina next door), the staff (all were unusually warm and friendly), the size and comfort of the rooms, and the price. We paid US$50 including tax for two people. I never met the owner.
I've stayed there on 3 separate trips, most recently last year. It has always been a pretty good experience for me, and I've stayed in a lot of little hotels in the DR (mostly on the south coast). I rarely expect much from the little places, but I was surprised. You are right about there being a maintenance problem.
I also stayed next door at the Casa Marina Beach/Reef for a week. I had a less than stellar experience there. We paid about US$140 for two per night, significantly more than the Sosua by the Sea, had a MUCH smaller room, and the food and drink were worse. See the full report at http://www.dr1.com/hotels/database/NorSosCasaG3LNG63V.htm.