My partner and I stayed at Ed’s place for 2 nights. The location was excellent, it’s about a 10 - 15 minute walk to the Gaslamp quarter and about a 30 minute walk to Balboa Park. My partner and I felt reasonably safe walking around the area together at night, and it seemed to be a safe area, however, use common sense if you don’t feel safe. We both enjoyed the James Bond decor. The only downside to our stay was the wifi connection as it would drop out approximately every 5 - 10 minutes and was quite slow. I did mention to Ed that the wifi was slow, however as most people would know, these kinds of things cannot be fixed instantly. All in all, my partner and I enjoyed our stay.
I would recommend doing the Old Town Trolley Tour if you don’t have a car as it was a great way for us to explore and learn more about San Diego.