We have stayed at that Sheraton. The Hilton and the Sheraton are right next to each other right at the freeway exit to Universal. The nice thing is the shuttle that takes you right over to Universal. It only takes about 5 minutes but it is a big hill so hard to walk it.
We were lucky enough to stay at the "club" level and our room was beautiful. The beds were soo soo comfy. It was a corner room facing US and had a great view. The food at the club level was wonderful and the room was right down the hall. So many families there just took the kids right for breakfast in their pjs and they had 5 kinds of cereal, oatmeal, yogurt, several different fruits and some really great coffee too plus the usual decadant danishes. (No hot breakfast stuff like eggs though.) In the evening, they had food too but we were always at city walk eating-good stuff there!
I have read some bad reviews lately but we really enjoyed our stay except the pool was freezing. If you can pay the small fee to upgrade to club, maybe $30? it would be worth it if you are breakfast eaters.