Gabrielle was lovely, kept in contact, and was a huge help when it came to figuring out transit (she even gave us two passes - thank you Gabrielle). The AirB&B is right along the Vatican Wall, which made visiting the Vatican very easy.
The downside of this location is the mosquitos. Gabrielle provided us with mosquito spray, outdoor mosquito repellents to burn, as well as an indoor mosquito light/plug in repellent, but they were still very bad and we did not know about the mosquito issue until we arrived. Had we known about the mosquitoes, we would not have stayed here. This is a completely personal decision as I react very badly to bug bites and at one point woke up with over 30 bites on my body. This was in spite of keeping all doors and windows closed, not utilizing the outdoor terraces, and using all of the mosquito repellents provided.
There is also no personal access to the laundry facilities, although Gabrielle is wonderful about setting up a time for your clothing to be laundered. This involves the cleaner accessing a locked room through your room to wash your clothes.
The location is good, most tourist attractions are easily accessible via bus, and Gabrielle is lovely. But beware the mosquitos.