I was tempted to give only 3 stars but I ended up giving 4 overall. The room was good size and was generally clean, but there were hairs in the bed. The outside of the house looks messy and the door is old and flimsy, and is falling apart. The biggest issue for us is the noisy neighbors. The room has a door which leads to the main house. There is a partition to create the illusion of privacy, but you can clearly hear everything in the next room. The people in the house were very noisy 3 out of 5 nights we were there. It sounded like a party, going late into the night. Loud talking and playing loud TV, especially our last night.
We were glad that we had a fridge and microwave, and that we could bring our dog. The room gets very cold at night. There is a small heater, but we didn't use it, just used blankets instead. We had our own blankets and pillows.
It is convenient to stores and to SF, and for the price, a good value. But we recommend that the host get a new door and tell the neighbors to be more quiet and respectful, especially at night.