This is my first time using Airbnb and I'm impressed.
To start with the host, Gioia was very helpful, she helped me when I asked for some information how to commute, etc etc...
The apartment have everything I needed except a TV, but I'm not watching that much even when I'm home so it was a good thing for me that I could have a break on that.
The internet WiFi was fast.
The bathroom and kitchen was fully loaded with a bunch of accessories so that's a plus.
The building has a little patio so you can relax outside for a minute.
Very close to the subway (200 yards / meters ) and about 1/2 mile (800 meters) to colloseum.
I would give it a 9 for sureout of 10.