My wife and I stayed at Carol's private bungalow for 2 weeks, along with our medium-sized puppy.
* Pros *
I'll start by saying that Carol is an amazingly kind, thoughtful, and attentive host. She did everything she could to make our stay pleasant, with quick responses to anything that came up, at all hours of the day. The property is also very well-located in a quiet, residential area of Pasadena. The bungalow affords a good deal of privacy, despite sharing the property with Carol's main home.
The WiFi worked well, the kitchen was stocked with all the necessary essentials (and Carol quickly provided anything that wasn't already supplied), and there were plenty of towels, clean sheets, and closet space. The A/C is located in the main living / common room and worked quite well, though it wasn't quite strong enough to keep the bedroom completely cool as well (Carol provided a fan for the bedroom to mitigate this). It was also quite convenient to have a washer / dryer in-unit.
* Drawbacks *
The main issue we encountered during our stay was the state of the backyard. While it is true that the yard is fenced, it was not a safe place to leave our puppy off-leash. The backyard was covered in dead leaves / mulch / chips of wood, and there were piles of trash on one side of the yard. We also found both broken glass and chicken wire at various points of our stay. Carol also leaves her dogs' poops in the backyard, and hires someone to come pick them up a few times per week. The result is that there are dog poops on the ground during the days where someone doesn't come to pick them up (we inadvertently stepped in it once and spent half an hour cleaning it off our shoes).
The one picture of the yard in the listing is a bit of a misrepresentation (though we did visit at the height of the summer, when it's less likely to be lush / green). I've attached some photos we took for reference to substantiate my description. I will also acknowledge that Carol's usual boarder was apparently out of the country, which she said made it difficult for her to keep the property / yard in the state it's usually in.
Other than the backyard, there were a few other minor issues we encountered. We had issues with the shower drain (clogged), the bathroom sink (emitting a foul smell), and the washing machine (stopped mid-cycle). As described above, Carol was quick to respond to each of these issues as they arose, and helped try to resolve all of them in a timely manner.
Finally, I would also note that we found the bed to be fairly uncomfortable and small, especially for 2 people. I'm almost certain it's a double / full bed, not a queen (which is how it is described in the listing). The kitchen supplies (pots, pans, bowls, cups, etc.) were also a bit old, though they were functional.