@Pat271 My word of caution with AirReview is that it contains some malware that harvests your personal data and can seriously disrupt any other applications you're using. If you find it useful for a one-time purpose and aren't too concerned about privacy, I still recommend at least unplugging the app when not in use.
@Peter3004 "Never had any complaints" is a fine retort to the question "How's your head?" but it's not necessarily the right approach to serious feedback. Fact is, most people aren't big complainers, and if 50 people notice a minor issue with something, maybe just 1 or 2 of them would dare to mention it. So before writing a critical guest off as picky, I'd ask some detailed follow-up questions about what specific issues they had, and carefully inspect for things that might have escaped my attention.
Based on the photos, your property is unique and looks more like a real lived-in home than a conventional holiday apartment - exactly the kind of Airbnb that I like personally, but some people newer to Airbnb only realize once they get the vibe that they're in a stranger's personal space that they actually feel more comfortable in a more generic rental. That may have been the case with your previous guests. With some pre-booking correspondence you can usually pick out the people whose expectations aren't a good match. But if and when Covid is no longer a factor in your check-in process, I do think an in-person walk-through is the best way to welcome guests on arrival.