I had a wonderful 3 night stay here.
The room was a good size for a solo traveller but would work for couples too; very clean with an en suite, fridge, wifi and TV. Some people have commented about the picture on the listing which shows the en suite looking different than reality, the room I had was different too but extremely similar in layout/size and it made absolutely no difference to my stay. Entry into the building and room is by 2 codes provided by John prior to check in, so no keys required.
The building itself is in a reasonably quiet area, besides a few doors closing here and there I didn’t find it noisy.
The location is great with the gaslamp quarter and little Italy a walkable distance away.
John had great communication, he checked in on me during the stay via the app to see if things were okay and was very fast to reply. If I were to stay in San Diego again, I would re-book here.
(Tip I found out way too late: The building is also in the boundaries of the app ride circuit, so you can travel for free anywhere in downtown in pooled little electric trolleys via requesting on the app or flagging one down. Uber was cheap to places in downtown anyway, but free is better!)