We loved our stay in Ralf's apartment. The apartment was lovely, was exactly like the pictures. The location was great, super close to Plaza Italia Subway station.
Check in was a breeze and we were shown around really well and given all the info we needed.
We needed to check out late so they allowed us access to another apartment in the building which was a really nice finish to our stay.
We would definitely stay here again!
The only thing I'd say is if you are sensitive to the light when you sleep then bring an eye mask as the blinds don't totally block out the light.