The house is small and so is the beach, but this is a really great place to stay. You'll wake up overlooking a gorgeous little bay that you can swim in (bring water shoes!). You'll watch seagulls drop oysters on the rocks, and hawks teach their babies to fly. The sun sets over the water and then the thousands of stars come out. We had fires every other night and drank wine and looked at the stars.
The house is simple and cozy, so don't stay there with people you dislike. Pocasset is a very small town, but it's easy to get to and easy to get to the bigger beaches further down the cape. It's clean and the owners are helpful and easy to communicate with.
Tips: Rent bikes in Bourne and bike down the Cape Cod Canal. The best lobster prices? Steam them yourself and eat them with fresh corn on the little deck. Can't be beat.