The apartment location is fantastic. A lot of piazzas, churches, dining, fountains, pharmacies, etc. very close. It was only because it was so hot and humid that we chose to take taxi to colosseum and Vatican. Thankfully the air conditioning in apartment worked well. As it states in description it is on 3rd floor- for Americans it is 4th floor and the lift/elevator as Alessandra states in description is very small. So we used it primarily to transport luggage up and down which was great instead of having to carry up and down steps carrying bags. We chose to use the steps mostly after..to get exercise to burn off calories after all of our eating- :-) If using elevator for people, probably just 2 would be most to get in.
Ours was a party of 6, 2 who are 50 and 62, and our sons and nephews who are from 17-19 years old. The sleeping was fine with me on sleeper sofa in main living room. Like most bathrooms in Europe, they are smaller than typical American but the main one was fine. The second bath on the living room level was very small, but in European style very efficient with a small sink, toilet and a hand held shower on wall so essentially is like a toilet and sink inside of a shower, but I used it and with planning so you do not spray towels or other things it is fine.
Alessandra was always quick to respond to any and all questions and arranged for a driver to pick us up at apartment for transport to airport which was very helpful. Overall for the price, location and condition, I have no regrets in this choice of apartment.