In short: fabulous and most recommended!
The two days we spent here were sufficient to appreciate the serene location, extensive comforts and splendid vistas, as well as the host's helpfulness. He not only kept in touch about our arrival, but also gave extensive tips for sightseeing, booked us in an excellent restaurant on the day of arrival and stocked the fridge for breakfast! (Did I mention a bottle of fine welcome Prosecco? Wow!)
The place is secluded on a slope and has a terrace with a spectacular sea view and something close to an infinity pool. Combined with all kinds of comforts provided inside, the house is a perfect spot to relax and sunbathe. We had little time for that, though, so we took advantage of the villa's strategic location to explore Gargano.
Points to watch: You may want to ask to have the electrical controls of the solar panels switched off to avoid being woken up at night by their ticking sounds. Also, the driveway is steepish, so even though it posed no problem to me, it may not be for everyone. Generally, however, Max the host seems to be able to solve every problem in no time : )
All in all, I wholeheartedly recommend Villa Francesca and am already planning to return