My roommate and I stayed in Patricia's guest house for three months so we became very familiar with the property over the course of our summer stay in LA.
The guest house itself is built onto the garage. There's actually a locked door in the bedroom that leads straight into the garage. Thankfully they never parked their cars in the garage while we were there, which probably would have been a deal breaker because of the whole carbon monoxide thing. The bed was as comfy as I could've asked for, no complaints whatsoever there. There is a window in the ceiling that's pretty much impossible to cover up and magnifies the sun right onto the bed in the morning and illuminates the whole room by 8AM so don't plan on sleeping in too much
The kitchenette is very small, but did the job relatively well (beware of the oven, it will heat up the entire place about 10-15 degrees when in use).
Thankfully Patricia had an AC unit installed during our stay which made our stay much more comfortable.
The single sleeper couch was a bit stained and had some pet hair on it. As a college student who has spent the last three years with grungy furniture it wasn't a problem, but it was incredibly stiff and not very comfortable for tv watching, but you're in LA so there's not much need for it anyway. It's described as being able to sleep a visiting guest on it, but when we pulled it out we discovered that it would only be able to accommodate a small child.
As for Patricia and her family, you can't really ask for nicer hosts! Her husband and two sons were accommodating and friendly whenever we needed their help with something. It's worth noting that the boys sometimes play loud music at odd hours but they're always happy to turn down their jams for you.
Also be aware that they do have two dogs that are usually roaming around outside. They are super friendly dogs, I would've taken them home with me if I could have! Just don't leave shoes or clothes outside because they are known to claim them as their own.
Overall I had an absolutely wonderful summer at this guest house and would be happy to come back some day!