Spent five nights (in late April) at this stunning house. Check-in was easy. The owner provided check-in information in advance. The location is perfect: on Popham beach, with direct access (and direct, stunning views) of the beach/water/waves and distant lighthouses. The house has five bedrooms (plus a nook off the master bedroom with a crib) and 2.5 baths. The kitchen is very well-appointed. There's nothing missing (and actually there are multiples of things like fruit/potato peelers and meat thermometers). Overall, an absolutely wonderful house.
Wi-fi works well. Cell service (at least during our stay) was fine.
Bath is only 25-28min away, where you can find a Shaw's, Walgreens, CVS, etc. The closer general store (Bisson's) is a good stop for beer, canned goods, and some staples but not really viable for a "stock the fridge" grocery trip.
Finally, the beach is amazing. Wide and expansive during low tide and mid-tide. Easy, pleasant walk to Fort Popham.
Overall, a terrific home. I highly recommend it.