All four had some key distribution problem that required talking to the host, who was not always reachable. (Oh, you just enter this code ... nope, doesn't work.) They also usually only have one spare set of keys so if we wanted to return at different times, no luck. One host wanted the late check-in fee paid in cash and wouldn't issue a receipt for it, even a PM/text with "yeah, got your $X late fee". (reported)
There's no reason we shouldn't require things that are effectively hotel rooms to comply with hotel safety regulations.
If AirBNB can only operate by violating the law, why should we support their business model?
We have the rules we have for hotels because they're typically large buildings with many rooms (often smaller than even the minimum dwelling size for private apartments) and that density presents significant safety hazards to many people should anything happen, not just you. You being in a 100sf room on the 11th floor makes it very hard to not have you die if there's a fire, especially when there's hundreds of you to evacuate.
There's no reason that someone say...renting out a detached single story house should need anything more than a working smoke/CO detector.
For my recent Airbnb stay I couldn't fault it. Was more than I expected and great value.
I'm tired of over-priced hotels with boring rooms and mandatory daily room service. I want the option of not having my bed made and towels replaced every day. Stay out of my room until I check out!
And there are also "serviced apartments" that only clean once a week.
The savings aren't big but I do take advantage of tem.
God forbid hotels recognize their inherent strengths and AirBnB's weaknesses and cater their services/marketing to that end.