I just found this little blurb on another site advertising it for $95/night. That's the same as their site states. I did see where you save thru AAA. One thing I don't know if you were aware of is the little perk you get by staying there. I copied this...
As a Universal Partner Hotel, Sheraton Study City gives you more (just show your room key):
15% off food and non-alcoholic beverages*: Universals Islands of Adventure, Confisco Grille® , Mythos Restaurant, Universal Studios, Finnegans Bar & Grill and Lombards Seafood Grill.
10% off food and non-alcoholic beverages* at select CityWalk® venues: Jimmy Buffetts® Margaritaville® Bob MarleyA Tribute To FreedomSM , CityJazz® , The GrooveSM , PastamoréSM , Pat OBriens® Orlando
Extended FREE scheduled transportation service to Universal Orlando theme parks, Universal CityWalk® entertainment complex and Sea World Parks
15% off merchandise on purchases over $50* at Islands of Adventure Trading CompanySM and Universal Studios Store®
Seems like nice a pretty nice little deal you get by staying there. I stayed there about 6 years ago while working a trade show in Orlando. It was pretty nice but I see they have, and are refurbishing thru July so it will probably be nicer than when I stayed. The one thing I hated is that it's a completely smoke-free hotel (and I smoke - which won't be a problem for most visitors). I was on the 14th floor and had to exit the hotel completely to smoke or pay a $250 fine. Needless to say, I got my money's worth out of that elevator!
I'd probably book your deal so you know exactly what you're getting. I have gotten some great deals thru Hotwire for some great hotels. It's somewhat disappointing to end up in one you weren't hoping for though.