First thing that pops in mind are the top location and the modernity of the apartment.
We've stayed there with 2 adults and 3 kids (5, 3 and 1yo) and had a great time. The apartment consists of all you need and also the roofterrace is great to chill out in the evenings (on midday it can be hot). The apartment's interior is modern and all is neatly. My feeling is that the price is on the high side compared to other places in San Vito (again, it is a feeling). I think it is worth it.
The location can't be better, just 100m from the beach and all restaurants are around the apartment.
Francesca and her daughter are great hosts and explained all well. I would highly recommend this place!