I have stayed in vacation apartments in Europe for many years and this was, by far, my favorite. Carlo and Henrietta are outstanding hosts - responsive and thoughtful. The apartment itself is, truly, a unique treasure. It addition to really interesting personal touches (grand piano, antique scientific instruments, a moon rock), the apartment is very clean and comfortable. Fortunately, (considering that our visit was in July), it is well-air conditioned. We made daily use of our assigned third of the lovely roof terrace, an easy one flight up from this 5th floor apartment. The location was ideal - on a quiet street, yet an easy walk to numerous restaurants and an excellent bakery. I would definitely stay here again on a return trip to Rome.