Kaitlyn really is a great host. She is very flexible, she responds to messages in no time and give you great tips (especially about the Vatican, you should definitely ask her!!). Unfortunately, we didn't get to meet her, everything is made for you to be able to checkin and check out by yourself.
The place has everything you need (towels etc) and there are also little attentions (bottle of wine and local cakes).
The main problem of the apartment is the lack of light (because there's only one window). So the place gets really humid and there is a lot of mold in the bathroom, especially in the shower.