We had a nice stay here and only had issues with checking in. Our host was flexible and told us we were able to check in an hour early, but then did not tell us where to go or how to get in. We ended up just going to the address on air bnb and then walking around until we found someone who could let us in, but after than, our host was very helpful and communicative. I am not sure if we were meant to assume it was run like a hotel by the title "guesthouse", but this was not clear to us, so I just wanted to clarify for future guests. The room was nice and clean with an adorable terrace, but it was run much more like a hotel and we had to check in at a front desk before going in our room. This was nice because we had privacy and our own space (but didn't have to pay hotel prices), but it is not private room in someone's apartment. The location is great and close to Trastevere. Also, our host provided us with free breakfast which was great!