We loved the Mission Bay unit. It was quiet, clean and great proximity to the bay (steps away) and ocean (about 2 blocks). The furnishings and beds were very nice and comfortable!
If you have small children you will love the beach at the bay; no waves, plenty of clean sand and tons of room! Older children will love it too, but my 9 year old preferred the beach on the ocean side. There are great restaurants and coffee shops within walking distance. There is a boardwalk out front for you to ride bikes/scooters, walk or run. People were friendly and polite :)