There's so much about this place to recommend -- you're right on the ocean, you're literally next door to Duke's, the place is spacious, and, as long as you're not expecting a luxury resort, you'll be plenty happy with the overall accommodations.
Things to note: 1) You are above Duke's special event space, so it can get loud until about 11-12pm. They do mention this in the listing, but it's at the end, of course, so if you don't read the whole listing, you'll miss it; 2) I'm unsure when this happened, but the house directly to the west was demolished and all that's left are the rusty struts that once held the house up. It's certainly no one's fault, but it IS kind of an eye sore; 3) Even with this eye sore, the beach is still perfectly fine for lounging, but if you want to swim, you are better off walking 150-200 yards down the beach where it's less rocky.