I am from the local area and stayed here for 3 nights with visiting family. The location is fantastic. It's walking distance to La Jolla Farms, which provides walking access to Blacks Beach. It's also walking distance to UCSD as you will see from the student parking on the street in front of the home. Parking is a challenge. Most of the street is two-hour parking, but one section is open all day and all spaces are usually taken by students.
From what I can gather, this is a 4 or 5 bedroom home that has been divided into two rentals and one living space for the host. The host closed off a bedroom door in the hallway with a shelving unit and drywall and lives in that room with external access. On the other side of you is another rental again with shared walls. It's possible to hear and be heard with ease. It's not like sharing a wall in a townhome or condo because it's just an interior wall of the home separating you.
Elvera is extremely sweet and thoughtful. She met us at the home for the check-in process and showed us around so we knew how things worked. This is an older home with original everything so there are some quirks (e.g. the stovetop is always warm because it has a pilot light, there are few grounded electrical outlets, etc). She left a bottle of wine, crackers, fruit, cheese, OJ, coffee, etc for us to enjoy.
There are warning signs and reminders throughout the home. Don't take baths, where the toilet paper goes, what goes in the toilet, don't use towels for removing makeup, don't open this door or alarm will sound, this area under 24/7 video surveillance (this was in the rear window pointing outside -- I'm curious how many times I was on that captured footage if there was a camera?), we're in a DROUGHT don't use a lot of water, etc. Stuff like this brought the excitement of the trip back to reality. I definitely felt like a guest in someone's home more than I felt like a guest in a vacation destination. Bottom line is there are a lot of house rules, as you might expect staying with parents or grandparents, and that's just part of it (and don't be too loud because you'll be heard). For the price, location, and square footage, these points are a fair compromise. The cleaning fee is reasonable as well, which is a rarity on air bnb these days. There's no TV, bluetooth speaker, or alexa/google/etc assistant, so if you just need a quiet place, an outstanding location, or a place to sleep at night, this could be great for you.