I am living in Berlin, a very close friend of mine is staying with us..
Simon, simply stated:
Friendly, clean, respectful, appreciative, prompt & communicative, straight forward, set accurate expectations, ...welcome back any time.
Those are genuinely the descriptive words that came to mind immediately about the weekend Simon and his girlfriend visited SF and rented this property.
This was a great Airbnb rental experience and I'd recommend them as guests at your property.