Hello @Steve3550
Greetings from Perth, Australia. I used to live in Lakeway, not far from Driftwood.
Your photos are really good and the place looks very cosy and well equipped. I can't speak to your nightly price but I'm sure you have looked at your competition. The slowdown could be seasonal, but in any case I would suggest removing some of the Additional House Rules that are actually check-out procedures. They can be relayed to the guest another way, then the house rules don't seem so picky. 🙂
Another observation is that there isn't much outdoor living space, especially for 7 guests. Table seats 6 so I would have 6 max. Good luck!