This property is a garage remodeled into a studio and we stayed there for three nights in the winter (toward the end of December), below are some of our comments that may be helpful.
Host: The host is quite hospitable and responded in a timely manner throughout. We checked in late in the night (1130 PM) smoothly and we spent most of the days visiting places and nights at the Airbnb.
Heating: There is no wall heater, the one portable heater provided wasn't sufficient to contain the chilly winter nights. Thanks to the host, she provided us with another heater when requested.
Restroom: The water pressure was low for us, and there was a suction system that generates periodic noise in response to water from the wash basin and the shower. The size of the restroom was quite small for us.
Interiors: The interiors of the studio felt quite creative and good, there were other facilities we didn't use such as toaster, couch, etc. There was also a TV which didn't work for us when I tried (all channels including TV/HDMIs), however we didn't have enough time for the TV thereafter so it wasn't concerning.
Privacy: The Airbnb posting had a private backyard in it and the backyard was accessible to other homes in the campus (though there was seldom anyone in the front/back yards). Also, when we were out in the evening and expecting to arrive in the night, the host was kind enough to turn on the heaters and keep us posted about it. We certainly took it as a token of good gesture from the host but some may have privacy concerns in that regard.
Value for money: We felt that $150 (incl. taxes) per night was slightly higher than hotels with comparable/better amenities in similar locations (Long Beach, Anaheim).
The observations regarding heating and restroom were unknown at the time of booking.
Overall, we had a decent stay after we got the second heater and gladly appreciate the host for her prompt and proactive address of our concerns.