Overall, our stay at Shanna's place was FABULOUS! She was quick to respond and was very attentive to our needs. When we arrived, the apartment was clean and looked just like the photos. Everything was in place and ready to go.
The location of the unit was central and it was extremely easy to take an Uber/Lyft to downtown or the Gaslamp. I would STRONGLY recommend taking an Uber/Lyft to downtown. While the location of the unit is in a central area and feels safe, some of the blocks further back (in-between the apartment and the Gaslamp) can be unsafe due to the homeless population. We were a group of three women so we made good use of Uber/Lyft. The Ubers/Lyfts are cheap and were extremely quick to arrive to the unit. It's definitely worth the cost.
One thing that was a bit overwhelming was the construction next door. I don't think our host had any control over this (and I know she made an effort to talk to the construction workers) but it was quite annoying to wake up at 7:30-8AM every morning even on the weekends and during a holiday (due to the gutting, sawing, drilling, loud music, etc.) while we were on vacation. I'm sure this is only temporary though.
Overall, Shanna's place was elegant and worth every penny! I would recommend it to anyone who wants to visit San Diego! It's also right down the road from a well known taqueria called Las Cuatro Milpas (5-7 min walk). The tacos are AMAZING if you can get in the door!