The Embassy Suites in La Jolla is a great location for people visiting UCSD. It's in a nicer area that seemed safe and well-lit. There is an up-scale mall directly across the street.
The staff at the Embassy Suites were nice. Nightly happy hour and cooked-to-order breakfast were nice features of the stay. The bed, however, was the least comfortable bed I've slept on in a long time. It was very firm. When someone in the bed rolled over the entire bed moved. I opted to sleep on the couch (not pulled out - sofa beds are rarely comfortable).
There were a couple of children's sports teams staying at the hotel during the last two of my 4 night stay. Children were running and screaming throughout the hotel and the sound carried through the atrium area. The staff of the hotel didn't seem to mind. Fortunately they'd stopped screaming by 11pm.