This house was the perfect size and layout for our group - we had 3 families with kids plus my parents. There was a nice sized bedroom for each adult couple, plus bunkroom for kids. The upstairs was spacious w/ plenty of room to cook, eat and socialize, plus plenty of bathrooms too.
Other pros: we were able to park at the property and check in slightly early, which was much appreciated, so some families could go to the beach the day of our arrival. The beach access was a very short and easy walk. There were 6 nice beach chairs provided plus a beach cart. The pool was the perfect place to play after the beach! Plus a large table that sat 12 people easily upstairs for group meals.
A few cons: like others said, the linens arrived a bit late, and I had to communicate back and forth to get enough bedding delivered - then had to make up all the beds ourselves, which we were hustling to get done before kid bedtime around 7:30pm on our first night, and no showers could be taken when we got off the beach, until late that night. So just be aware that the cleaning services is separate from laundry/linen service. Had we known that we could have maybe decided to bring our own bedding and avoided the fee/hassle, but we worked it out. Really that was the only snag but after that the entire rest of the trip was smooth sailing and we had a wonderful stay. Fenwick Island is also just a great family destination - we had never been but would absolutely go back again.