If I could wave a magic wand, I would remove the "check in" category from hosts who have a lock box or key code. How can a self-check in be rated against a host? So either everyone gives 5 stars or there is a retaliatory review if for whatever reason the guest does not follow instructions or feels uncomfortable with using a keypad. With a host that meets the guest for key exchange? Sure. Keep it. But for someone who has flexible check in time and uses a code to unlock a door, its pretty meaningless.
Also, I would remove the "location" rating. As they say in real estate, the location of a house is the one thing you can't change. If the location is described inaccurately the "accuracy" rating should cover that. Perhaps instead of a rating, there would be a section that showed distances to points of interest, or a searchable map for things like "restaurants near me" or even a walk score. Front loading the info would be better for the guest than a rating on the back end about a factor that the host can't control. I fully believe that only things the host can do something about should be rated.
If I designed Airbnb and needed rating categories I would do:
Accuracy
Cleanliness
Comfort
Communication
Value
OR just have a review and a thumbs up or down for whether or not a guest would recommend to others.
What categories would you change?