This is a nice apartment and very close to a nice supermarket, restaurants, the Vatican and public transportation.
It fit our family of five very comfortably.
People have commented about the check-in process, but it was super easy for us. The keys were in a lock-box across the street. We were given the code before check-in, got the keys and then we were on our way.
The elevator IS small. Lots of steps, but put your bags in the elevator with one person and you’re good to go. Most of the time we just went up the stairs.