Tim's place was perfect for our several day adventure. It's an easy and short drive into downtown San Francisco from this spot, it made for a great starting point to go on our various sight seeing trips. If you are hoping to avoid renting a car it might be a little too removed from downtown, however we saw the bus go past the street daily.
I have seen several other guests note about the little ones upstairs, we only heard them during non-quiet hours. But overall they were very quiet, neither myself nor my friend had any issues being woken up by kiddos.
Wonderful spot, will recommend to friends and will stop by on future trips!