Stayed for a week here. Troy was great, replying to messages and fixing minor issues right away. For instance, as we arrived, there was only one spoon and 3 forks, when the house can host 6 guests. In a couple of hours, he left a full set for us.
Troy's place is very clean and amenities are provided, like paper towel, shampoo and liquid soap. Troy also provided soap for the washer machine, which was nice to use. Washer and dryer are shared with the other guests from the front house.
The entrance to YOUR "back house" is only yours, with a secure code given to you only for that second door. The other guests have the code for the "laundry door"/first door.
The only true "negative" was the location for me. It's at least one hour away from the places we were visiting: Hollywood, Warner Brothers, Farmer's Market, Griffith Park, Universal and Santa Monica. If you are visiting Disneyland and/or Knott's Berry Farm, then the place is more "central". LA traffic is crazy as other people have said.
Parking can be tricky. My wife always stayed outside the car, to make sure I wouldn't hit the other car or wall. Thankfully, the driver from the front house parked VERY close to the garage, giving me enough space to leave safely.
Quick tips: the AC works VERY well. We NEVER left it running as we left the house for day trips. Upon arriving, we would turn on AC and, in 5 minutes, the place was cool again.
There's a Mexican food truck within walking distance, almost at the corner of Sandalwood and Gemini. Food was cheap and tasted great.
I would come back here, it's not luxurious, but I wasn't looking for that. I felt safe and it was nice having two bathrooms for our family of five.