This was my first time using AirBNB so I hadn't realised I'd not booked an entire place to myself, however I'm glad I stayed! Your mother was a very attentive host, easy going and lovely to talk to. Everything was clean and effort was put in to keeping the place tidy. Can I suggest including in the key instructions that there is a button either side of the key safe that needs to be pushed to open it after the code is entered, as it took me a while to realise this.
Regarding the airtag on the keys, although I know it's being used to track the keys in the event that they're lost or stolen, I wasn't overly comfortable knowing my location was being tracked. I'd perhaps state in your description that the keys have this feature and explain why, so that guests can make an informed decision prior to booking your place.
All in all a very pleasant stay and I'd wished I had the chance to say cya later to your Mum and dog!