We are not from the area nor very familiar with Cape Cod and were looking for a quiet retreat on the water. As beachhouses are hard to comr by, we struck gold with this home on an inlet. It is part of a few rental homes but all are very spaced out. Our particular rental had an amazing waterfront deck, where we spent a majority of our time.
Our only recommendation to the property owner would be to install a dehumidifier, as the days it was raining it was nearly impossible to dry our bath towels, bathing suits, etc.
With regards to check in and out, it is all remote and easily noted in the instructions. Even more importantly, despite a rental company (del mar) managing this property, I was always able to reach someone when needed. We had quite an emergency while there and had to put our dog down, and the rental company was quick to respond. They went above and beyond to ensure we were ok which was very appreciated in such a horrible time. So we recommended this house both from what you sent and also from who you are renting from!