With two bedrooms and bathrooms the large unit was good for the four of us (two couples).
Pros: Close to town, no sign of the owner (but he answered emails quickly), free wifi great for staying in touch, lots of hot water.
Cons: The front room is right next to the road which gets quite noisy early in the morning (city dwellers might not even notice it), lots of stairs (healthy people shouldn't be bothered by it).
Be aware that as of 7/2011 ATT has no cell coverage anywhere around Boothbay. Attempts to use our smartphone with Gvoice were stymied, but you may have better luck with Skype. We gave up and just used a Verizon cell which had full bars.