This is a very well kept and presented one bedroom flat. Communication with the host was excellent and the self check-in was great given we arrived past midnight.
Location rating is really dependent of your plans. Trastevere station is 13 mins away. Tram 8, which usually serves the area, is suspended for repairs for a few months more. Replacement buses are available but are very packed and not so reliable.
Only two things I would have loved to know before booking: the hot water is via a very small tank which will only be enough for one, max two people. We were 2 adults + 2 children and it was not a great experience. Then there is a long wait until it warms up again.
Second, the flat is right next to the front door of the building and opposite the lift. Although it is quiet at night, there is a lot of noise as people arrive late and leave early -a lot. You also hear very loudly the shower above. Not for light sleepers.
What you see is what you get except the points above!