Convenient location, terrible service. Find another hotel!
Stayed from July 7-8, only now leaving a review, which is a good thing because I'll be much more level headed about it. My wife and two kids planned an overnight stay for a work conference. We figured it's a perfect spot to enjoy San Diego. We checked in at the Marina tower and I was told that our connecting room reservation could not be honored. I had called to verify 48 hours prior, but apparently that didn't count. Apparently connecting room reservations are not guaranteed. Nice.
I asked about the Bay tower. Alas, they had two connecting rooms, each with two double beds. No big deal for my wife and I, we'll deal with it. So off to the Bay tower we go, but not before I talk with management about this. As a Starwood preferred guess Gold member, I've never been treated like I was by management on this trip. 
As we all know, most hotels will block rooms and not tell the public they are available. These may be suites, accessible rooms for handicapped individuals, etc. Apparently there were no rooms available. But the level of disrespect offered by management was amazing. No apology, nothing. Just a good old "sorry, but connecting rooms are not guaranteed." Ridiculous. 
So, we go to the Bay tower rooms, which are largely outdated and terrible. Lucky enough we were on a wedding party floor, so our 3 year old and 9 month old were treated to tons of noise throughout the noise.
Stay classy Sheraton. 
We'll never be back, and the folks at Starwood are going to hear about my experience.