My wife and I stayed in Villa Serendipity last week with 3 other couples and had a fabulous time on St. John. The pictures on the website are accurate, but do not do justice to how spacious the villa is, or the views from the deck over Chocolate Hole & looking west toward Cruz Bay and St. Thomas.
The great room & newly renovated kitchen provide plenty of space. The villa easily accomodated the 8 adults in our group.
As nice as it is indoors, the outdoor areas of Villa Serendipity are what makes it really special. The outdoor breakfast bar, sitting area in the breezeway, and the 2 tier deck with pool are where we spent our time when not sightseeing on St. John - the views across the water & hills cannot be beat. The location of the villa is great too, only about 10 minutes by car from the ferry in Cruz Bay, but near the end of a side road up the hillside - very private location.
Check out Villa Serendipity, you will not be disappointed. Our only regret was that we had to leave!