Pros -
Close to convention center and right in the heart of the Gaslamp Quarter.
Plenty of beds for everyone. Very comfortable.
Good AC and Heating
Cons -
Loud at night because you are above the bars. Didn’t bother me but light sleepers should bring earplugs.
Only way to get into the apartment is by climbing two sets of stairs. Could be a issue if you can’t climb stairs well. Also, don’t bring bulky luggage.
All in all, very nice place for visiting downtown San Diego