Not good for travelers who need to eat after hours
This review focuses on 'after hours' room service/food options (which is important to me as I work nights when I travel and have no chance to eat dinner). I choose my hotels based on this. The Westin San Diego's web site stated that they offer after-hours room service. They do offer a bit of food. But the "menu" is VERY limited and food is pre-made earlier in the day (see photo of menu): Cereal, fruit, 2 sandwiches (ham & swiss $12), baby greens or Caesar salad (w/chicken $18), lasagna ($18), ice cream. That's it. Also, San Diego does not allow wine to be delivered to your room after 11pm (what!?). The Westin San Diego's bar closes at 11pm BUT their web site says 12:00pm close time. Will need to stay at another hotel next San Diego trip. 
Additional: rooms nice/basic/clean. Staff friendly and professional. Great location. They went to the wrong room and did not deliver my salad (mid-night) - but comped it due to this. Nice gesture.