Good, very clean apartment just minutes from St Peters Square or the Vatican museums. 3 blocks from the Metro. It is on the first floor, on the corner of the intersection so you will hear car/Vespa noise all night, but if you are prepared for that, it isn't bad at all.
The air conditioners did not work for us, but we communicated that to the host so hopefully they will get it taken care of.
Good value for a place to crash after you have explored Rome. Very clean and well stocked.