This was a perfect airbnb, the apartment was new, large, bright, beautifully decorated (comfy bed) and in an amazing location on quiet street. You get to live like a local away from the Union Square hotel lot.
You are feet away from great restaurants, shopping and transportation, We had rented a car for 4 days and never had an issue finding free parking.
I also liked the fact that there were plenty of extra towels.
We didn't get a chance to meet the hosts yet they were very thorough, in giving us instructions on getting into the apartment and many other useful bits of local info. They texted us to see how things were going and left a contact number. I would definitely stay here again on my next trip to San Francisco.