I host in the same situation you do, @Rachael52. My guests have their own bedroom and bathroom, and share my kitchen and the kitchen terrace where the dining table is. The living room, attached to the kitchen, (but clearly a separate room, not “open concept” isn’t listed as a shared space, although I have had guests sit on the couch there to read and I don’t mind that at all- there’s no TV).
While I always clean the guest bedroom/bathroom myself, I also have a cleaner who does the rest of the house- she comes every 2 weeks for 4 hours.
I am a tidy person, like things clean, am a minimalist, and live alone, so the house never looks messy or cluttered, but it’s definitely way cleaner for a couple days after my cleaner comes, as she washes the floors, windows, etc., things I don’t want to do or don’t have time for.
However, my house is only 17 years old, with no nooks or crannies to clean, or old carpeting, etc. And the guest room is accessed from the upstairs balcony, up a flight of outside stairs, so guests don’t have to walk through “my” parts of the house. And while when I don’t have a guest in residence I can let my dirty dishes pile up for 2 days, and not bother to clean the grease off the stovetop if my cleaner is coming within a few days, I keep the kitchen clean when I have guests. So I have never gotten less than a 5* on cleanliness.
There are many people who equate old and a bit shabby or lived-in, with “dirty” even though it isn’t.
I remember reading a host post years ago- she had a heritage home in Savannah, Georgia, that had been in her family for generations, that was full of a lot of the original, now antique furniture and decor.
Her reviews were either “This place was amazing and fascinating- like a step back in history, with beautiful antique furniture, and even a 1940s fridge that was still working.”
Or “Old and shabby”.
I don’t think there is anything you can do about those kinds of perceptions, but I do think you could add wording to your listing to try to lessen the 4* cleanliness reviews. It’s a matter of setting expectations.
Something like “Please understand that you are booking a homeshare listing, sharing some spaces with us if you choose to. Our home is “lived in”- we might not keep every living room surface clear of the things we use, and much of our furnishings in shared spaces are not new and modern. However, we do keep it clean and even have a cleaner who comes once a week. If you equate “old” or “worn” or “cluttered” with “not clean”, this may not be the best listing for you.”