We stayed for just under a week with our 15 month old and it worked out well. Big thank-you to Keith for putting up blackout curtains so our little one could sleep better! Other highlights included the location, street parking (similar to other reviewers, we didn't end up needing the reserved spot but it was great to know it was there), spacious kitchen area with cooking ware, great air conditioning (though the bedroom seemed to get much colder than the rest of the apartment), having a washer & dryer available, complimentary beverages in the fridge, beautiful patio and a nice selection of entertainment - TV, games & books to read.
Things to note: the bedroom could get quite cold at night (at one point we just turned off the AC unit in the evening because of this); you could clearly hear voices and footsteps from anyone walking into the main unit and up/down the stairs (thankfully this never woke up our baby, but we also had a sound machine in the bedroom); beware of flies coming in from the outside; the concrete-like floor felt like it could have used a bit more of a cleaning, but it wasn't terrible and we wore slippers; and some of the extra sheets in the ottoman had a few holes.
Overall it was a comfortable stay and we would consider booking again if we returned to San Diego!