We stayed at Sem's place for 3 nights when we were in Rome, the place is absolutely beautiful! Cleaness could compare to a good hotel. And location is right next to the Vatican. We really enjoyed our stay there. The owner was very nice that let us stayed a few extra hours since there were no new guests on the checkout day, it definitely brought great convenience for our trip as four of us had a lot of luggages with us, huge huge help! Definitely would come back next time!