The apartment itself could not be better. The location is amazing, the beds are comfortable, the AC is effective, the apartment is very clean and stylish.
The only thing that did not go well was check in. I mentioned a 3:45 to 4 pm check in and was already receiving impatient messages about my arrival time before 4 pm and it seemed to be a major imposition when I finally arrived at 410. Given all the challenges in urban travel in Italy, I think you should get an award if you arrive within 10 minutes of your anticipated arrival time.
I would still stay there again because the location truly cannot be beat.