The Airbnb is what you pay for. It is by no means luxurious; it is small and a bit smelly. You get used to the smell after a bit. Everything is pretty basic. But it has a great location and the host was very responsive. There are some local homeless people that have taken residence outside but the building itself is locked, and nobody bothered us anyway. Check in was very easy. The building doesn't have central air, however, a portable A/C unit is available. Strangely, even though it's San Diego the building warms up. The bed and towels appeared to be clean. The trolley system is just a few blocks away, rentable electric scooters are across the street and the Gaslamp is less than a mile.
I've stayed in better Airbnbs but for the price and location it was sufficient.