Irene's basement suite was lovely! We landed in San Francisco in the morning and we were warned not to leave our belongings in the car because break-ins are very common. We messaged Irene, and she said that while we couldn't check-in early, we were welcome to store our luggage in the basement near the unit. This was very kind and helped us out immensely!
Although the unit is in the basement, it has windows that let in enough light for us to not feel like we were underground. The apartment is spacious, and it had everything we needed for our stay.
It's street parking only, but we were always able to find a close spot. We didn't leave anything in the car (or anything visible at least), and we didn't have any problems. The neighborhood is quiet and feels safe. There are a lot of restaurants within walking distance, plus there was a Saturday farmer's market that we were able to walk to.
Overall, we had a great time and would definitely be up for staying at Irene's again next time we're in town!