Cathy was incredibly communicative and flexible! She helped me when I needed to coordinate getting a package delivered to the AirBnb and quickly approved my request to modify the reservation when I needed to leave early.
Note about the place: It's possible that I didn't read the description carefully enough, but I definitely didn't realize that the listing essentially operates as an AirBnb hostel. There were multiple people with separate listings for rooms within the house (protected with unique door access codes) and all the common spaces (TV, bathroom, kitchen, garage) are shared. This didn't bother me, but it did catch me by surprise and wasn't what I had in mind when I booked a "private room" listing.
Note about location: the Lyfts I took into/back from town every day cost about 10-17$ each way and took 15-20min (when I was the only passenger). It was definitely outside of town and was described to me as "not the best neighborhood" by multiple Lyft drivers. Again, this didn't bother me too much but you should take it into account when considering the time/money it will take you to get to/from the AirBnb.
Overall take: 5-Star Host! Good value listing for the price, but not the most private or convenient if you're centering your time around down-town SD.