We stayed for two weeks at this house during the summer of 2015 and found it wonderful.
The house (or really 2 adjacent houses) is beautiful and spacious. The rooms were nicely but simply decorated with good quality furniture, and the kitchens were well equipped (especially with ceramics!). For us, the only drawback was that there were two houses, and thus two kitchens and living rooms, and we like to hang out together, but there is plenty of room, so this isn't a big problem (and for many this could be an advantage).
The area by the pool, where we would also eat, was just wonderful, and from the patio area, you could watch the sun set over Deruta. The pool is huge and well maintained. Since we were there in the middle of a heat wave, this was a vacation-saver! The gardens are beautiful and there is quite a bit of space both indoors and outdoors.
The local hosts were very helpful with restaurant and tourist ideas, or issues with the house (I locked us out!) and yet not intrusive. They came every day to check the pool and water the plants, but usually before we were up, or when we were cooking dinner.
Umbria is almost as beautiful as Tuscany, without all the tourists, so the area nearby is very nice and full of places to explore.