Jeff's beautiful villa is an upstairs unit of a 3-unit condo complex on the grounds of the Terranea Resort. It was remarkably quiet for having neighbors--inside we only heard doors closing and one time there were faint voices below us--which was really impressive. It feels private and the views are stellar. The master suite is particularly wonderful and includes a gorgeous view over the golf course to the ocean. It was nice to have a full kitchen, and the office space is wonderful--great for a morning yoga practice, though I ended up working at the kitchen table to take advantage of the views! The resort is lovely and was relaxed during our off-season visit. The walking paths along the bluff overlooking the ocean were serene and beautiful and not to be missed.
You do have neighbors below who have a large backyard space, and the one morning I wanted to sit out in the sunshine, there were kids and grandparents below making noise, but once I went back inside, it was very quiet. Since it's a hotel, expect people around (the night we left, someone was having a pretty robust party across the street). The unit itself could use a little love (the carpet in particular needs some TLC and the couch is pretty tired) and the setup is such that you can't really curl up and watch a movie (no comfortable seat faces any TV), and I couldn't connect to the internet on my Apple devices (phone and iPad), but those are small things in the face of what is actually a very reasonably priced hotel suite at a top resort.
Note: you check into the hotel like any other guest and they put a hold on your card for incidentals, so you could order room service or charge restaurant meals to your room, which is convenient. We didn't have the chance to do either, but definitely wanted to try the restaurants on site.