@Jyothsna2 Your advertised checkout time is 11:00, so I'm a bit confused at how a 13:00 departure adds up to a 7-hour "overstay." But this is beside the point - the review complimented your willingness to be flexible with timing.
The guest's complaints had nothing to do with the lack of maid service during their stay; they were specifically about the state the home was in when they arrived:
"Bathrooms were not clean in terms of dirty toilets and build of a lot of dust. Kitchen looked like it was wiped down with a dirty cloth."
These don't sound like the remarks of someone who's simply better suited to a hotel. They sound more like an indication that your cleaning service is inconsistent. There's no reason to throw money at the guest - the stay is over and the review is final - but what you can do is take the feedback on board and make sure you personally inspect the work of your cleaners between each stay.