Enrico's apartment is a wonderfully spacious apartment in a beautiful building in a great neighborhood. It is easy to find on a main road. It has a cool cage type elevator (but be aware you have to climb 6 steps to get to the elevator).
The living room, dining room and kitchen is a big open area with great big windows that was very comfortable and welcoming for our group of 8.
There is a small balcony off the living room from which we were able to watch the New Year's Eve fire works.
It is a 6 minute walk to Castle San Angelo or piazza Navona, 10 mins walk to the Vatican. There is a market just down the blocks and great restaurants within a block also.
As other people have mentioned, the only issue is the location on a loud street. (It's fine with the windows closed though.) Also a few basic maintenance issues that were quickly addressed.
We would recommend this airbnb and would definitely stay here again. Our family really enjoyed it.