First, I would say, if I wanted to stay near the Vatican, I would not hesitate to stay here again. Below will be a critique of the place but please keep in mind I enjoyed my stay there.
This location is listed as a 1 bedroom but the bedroom is only separated by a sheet, not a door. Just an FYI for those that want complete privacy.
Next, the bathroom is a little small. Tall people need to mind there head to avoid a beam. There was also a little bit of a smell. I wonder if this was because the bathroom was below ground level. Definitely not a deal breaker.
There is a washer, coffee maker, and microwave (though we did not know how to operate it) so it has great amenities. The wifi is a little bit on the slower side - no streaming and slow with multiple phones - but very usable for light surfing.
If you want to stay near the Vatican, I think the location is perfect. If you would like to be more centralized, I would recommend another location. Our focus was the Vatican and enjoyed our stay but it did require a lot of walking.