I defintely recommend it :)
Me and my two friends stayed at David's house and we enjoyed it. It was clean, it had everything you needed from amnesties point of view: towels, hair dryer, coffe pot, soap, etc.
From location point of view it has cloase connections for all kind public transport(metro,bus,tram), we tried all of them, you get to center in aprox 30-40 min; also direct line from termini station(aprox 20 min).
It's not very big but enough for 3-4 persons and it has a stylish and interesant touch.
Communication was great & fast.