This was my mom's first stay in an airbnb and she was a little skeptical at first. By the end, here's what she had to say: "Thank you for making a nice space for people who need a home away from home. We appreciate the wheelchair accessibility and the fun way you have decorated your space! The close proximity to the hospital and great price was a gift!"
I would add...
+ hosts are kind, responsive, and helpful
+ quick/easy check in and check out
+ very quiet location