I spent a week in Giampiero's place and I can't think of enough bad things to even take off a single star. Minor picks: The showerheads need a good soaking in scale-disolver... I'm really stretching here. To be clear, it's a 16th century building! It's amazing there's even plumbing and lighting is these places. I've stayed in the Campo/Navona area several times and this one is typical but has several benefits. First, both Campo and Navona are very short distances from your door. I also walked to the area south of the Vatican and did it in 25 minutes or so. Great location. Oh, and there aren't many usable outlets here. I survived on two converter boxes but probably only needed one. In particular, Giampiero's place had distinct advantages: First, a private patio. On the second (American "second") floor, quaint, inviting, and fun. I spent several siesta's working on this patio. Then, the apartment is located inside the building "square"; you though two doors before you get to this apartment. Incredibly quiet. Inside exactly as shown and described. The arched ceilings are beautiful (I'm 6'1" no problem). The kitchen is a wall of sink, appliances, and stuff to cook and eat with. I found it to be as much as I needed.
Note to parents, the twin beds are in what we Americans would call a "precarious" place, close to an open stair case with 16 steps to the bottom. Easy to navigate for children but toddlers not so much.
I loved how quiet it was and, yet, as soon as I opened the "front" door I was pelted with the lively atmosphere of Italy's old city night life.
This is a 4.9998-rated place. Oh, and these folks get it when it comes to travelers. "Conveniences and character" - what all tourists want. Giampiero's place is a warm space to huddle as a couple or a family, away from the noise, to talk about the excitement of your Roma day.
Oh, and the area...Pfft... everything you need a short walk away (I did laundry and bought groceries) and all great tourist sites just 12 minutes walk away.
Seriously, can't think of a single thing that would significantly ding them. They're great hosts.
I'm going back to Roma in 8 days and plan to visit his antique shop out front on Via del Governo Vecchio.
Nice to meet you wonderful folks, and thanks for the care and attention!
DL - Ohio, USA