We loved staying in Kaleen's place in NOPA. NOPA is a wonderful area of the city to stay: close to parks, coffee shops, grocery store, and transit. Very walkable as well. The flat is very comfortable and the kitchen is very usable - with a nice big kitchen table. The beds were super comfortable as well. And street was quiet - it actually is a no-through traffic street.
Kaleen was a great host and easy to contact. She provided us with information on what was going on in SF each week - really helpful.