Daniel is a good host, very responsive and accommodating. His place is very clean and has all the amenities and kitchen supplies you need (and don't need). The place is not too far from most attractions, but for sure you will need a rental car or Uber/Lyft to get to. Echo what other reviewers said, the area looks a bit sketchy at first, but doesn't feel dangerous.
During my stay (4 nights total), the weather was cold in SD in the evening and the heater in the living room was out of order. I contacted Daniel the second day and he dropped off two space heaters for us, which was helpful, and showed his hospitality.
I took out one star because the first night for me was really rough, on top of the low temperature (in the 40s), the downstairs neighbors were drunk and being loud (banging on walls and laughing and shouting) till 3 in the morning. Which may be common if you happen to reserve the place at the same time as some weekend party goers. Overall, Daniel's place was nice. I enjoyed it despite the couple of issues mentioned.