I live in Amherst Massachusetts with husband Jim, and love using airbnb since a first trip to Italy with my friend MaryLou.
Lois and her friend Marie Lou stayed at our apartment for 2 nights.
The comunication with them worked very well: Either before their arrival (for example, they sent their documents before coming and kept in touch comunicating their probable time of arrival at Spello), either afterwards while staying in the house when having trouble because electricity went out during their stay.
They left the apartment in perfect order, so that we'd recommend them any time.
Perfect guests. Easy to deal with, kept in touch regarding their plans and left my guest house just the way they found it. Very friendly I have enjoyed our chats and super happy they were able to meet and became friends with a half roman couple . They are the kind of people you can definitely feel comfortable renting to.