Location: we wanted to stay out from the very party area, but close enough to the center to walk to everywhere. The flat is 15 min walk from St. Peter Basilica and 40 min walk from the Trastevere area. Long story short, it's awesome :)
Ameneties: There's a washing machine in the flat, so that makes your life easier. Also, there's a fridge and a cooking corner, if you want to make food for yourself. The boiler is making just enough hot water to make 2 people have a quick shower, so that's a challenge :) Also, there's iron, ironing board and a hair dryer in the flat. And band aid too, but hope that you won't need it :)
Host: Fil is a cool and very polite guy. He's available all the time if you have any questions. Great host!! :)
Internet: There's a mobile phone that provides 4g hotspot. The bandwidth is up to 8 Mbit/s (1Mb/s).
Privacy: The flat quiet, the whole building block is fine, no one will harm your rest here.
In general - highly recommended place!!