@Julie3684Overall doesn't sound as bad as it could be for families with young kids, but as someone who raised 3 myself, I know that some parents just don't keep an eye on the kids like they should and don't seem to find anything wrong with letting them wander all over with food and sticky hands or ruin things.
Many hosts just don't leave honest reviews, unfortunately, and a lot of hosts who use IB don't realize that non-IB hosts aren't privy to guest star ratings, so they might leave low stars (because guests can't see how you rated them), yet shy away from saying anything negative in the written review. So keep that in mind when writing reviews yourself- make sure you tell it straight in the written part, not just the star ratings.
And some hosts think all guests are fine as long as they didn't trash the place. Or they feel they're being mean if they don't leave 5*s
I'd give them 3-4* cleanliness rating and 4*s for house rules as long as it was just the check-out rules that weren't followed. In the written review, in addition to mentioning anything positive, like maybe their communication re ETA was fine, something like "check-out instructions were not followed and more supervision of the children, one of whom scribbled all over every page in our guest book, would have been appreciated". It's one thing to be distracted and not keep an eye on what the kids are up to, but not even letting you know and apologizing for the scribbled-in guest book was disrespectful.
Bean bag bits or crumbs, whatever they were, scattered around seems like something you shouldn't be surprised about if you accept families with little kids (and you have to vacuum anyway), and gross as it is, bodily fluids and such on linens are often part and parcel of hosting.
