This is a beautiful, very clean, and well-maintained house right on the beach. It has a lot of really nice features: a huge screen porch facing the ocean with multiple lounge chairs and dining table; an enclosed widows walk that remained cool even on hot days; an enclosed ground floor full of entertainment (ping pong, shuffleboard, air hockey, mini basketball, pool table, even a currently-broken skeeball machine).
Two of the king rooms have an ocean view. The third king room and the bunk room has mostly a view of the scrubby back part of the barrier island fronting the National Wildlife Refuge. The kitchen was well-appointed -- there's an extra fridge in the enclosed ground floor -- and the living room and dining room were nice and well designed.
The one odd part of the house was the single large upstairs room (plus full bath). Two queen beds sit at the corners of this room with beachfront views; because we were there with two couples, my wife and I took one of these beds strictly for the view. The rest of this room is dominated by a huge sectional sofa that seems like it might be intended for kids watching videos, but with a large group this might be challenging given the lack of privacy for the adjoining queen beds. Strangely, this large room had zero chairs or tables, which I think would make it hard to spread a large group out into the upstairs area, except for kids watching TV.
The beach is probably nicer at other times of the year; in our case, in mid-May, thousands of horseshoe crabs came up on Prime Hook Beach to mate the night we arrived and their dead and dying carcasses were everywhere — sometimes in piles — and that in turn meant there were a lot of flies. Perhaps because Prime Hook Beach fronts Delaware Bay instead of the ocean per se, or because it appears quite shallow pretty far out, there is basically no surf; the "breakers" were typically about three inches high, growing to about a foot on a day when we had high wind from the East.
However, one of the highlights of the area is wildlife. We had a fox come around everyday around sunset, looking for rabbits or heading to the beach for a horseshoe crab dinner. We saw bald eagles flying up the beach one day, and we always spotted some -- along with osprey -- on the drive in through the NWR.
If you come for paddling, as we did, the paddle upstream from Foord's Landing in the NWR is worth it, as is the Murderkill upstream from Coursey Pond near Milford.