Franz is a wonderful host. I booked this place last minute and the Airbnb had a systematic error that didn't charge me the extra $30 cleaning fee. Franz contacted me immediately to explain the situation and offer to split the cleaning fee with me if I choose to stay or he would pay the non-refundable cost if I preferred to find another place.
Franz's place is really a hidden gem, nothing fancy but nice, clean, neat, and had everything you needed. It charges as a private room but really you pretty much have a suit. I felt comfortable coming home late in the night without worrying about disturbing anyone. I had to work in the morning and the TV can be used as a second monitor, and the desk was huge where I can easily put my laptop, notepad, and breakfast :) The bed is comfy and there was a small fridge, microwaves, etc.
Franz's place is located in a quiet neighborhood but super close to everything - the quiet Crown shoreline, miss bay, and many good restaurants like better buzz cafe, fish shop, taco surf, and brazil bowls. Parking is pretty easy. If you go out really late at night, you may need to park a block or two away from the house.
The only issue I would say was the airflow in the room as the windows not able to open very wide. This could be a concern only if you spend much time there during the day. They do have a fan to help, and I just simply left the door open.
I will definitely book Franz' place again during my next visit to SD.