I honestly can't suggest any way to make Teo's place better. It's in a great location. Indeed there is hardly a better location in San Fransisco on Airbnb. The place is cozy and comfortable. The host, Teo, is a gentleman and great human being. He is a great conversationist and a truly global citizen. He chooses the right balance in interacting with the guest, of being politely inquisitive when needed and effortlessly unintrusive when required too.
I would go as far as saying that Teo should be the chap who is a brand ambassador among hosts on Airbnb and the rest should learn from him.
Needless to say, I truly enjoyed my stay at SFO, which is my favourite city, and Teo contributed to it a lot