I recently received an Instant Book, along with a message from Airbnb that "Guest's check-in time is: 2PM - 4PM"
Which is nice, except that my stated check-in is after 3pm.
Guests should ONLY be allowed to pick a check-in time that is within the host's already specified window. The current set-up gives the guests the mistaken impression that they can select any time. If a guest needs something outside of a hosts' stated offering, that needs to be sent through as an inquiry, not an InstantBooking.
On another forum an IB guest selected a noon check-in on a listing with a 3pm check-in and ended up waiting in a cafe for 3 hours. As a host, I do all I can to set reasonable expectations and delight guests by exceeding them. Airbnb is working against hosts by setting expectations we can't reasonably meet. How can a host possibly have a listing prepped by noon when checkout is 11am and it takes 2-3 hours to clean?