If you want to go to Universal & IOA take a short walk to IDrive and hop on the green trolley bus to take you up the Idrive ...its really cheap.
You could always enquire direct with the hotel about a shuttle to Universal, since they have another hotel in their chain right close by it I'd be surprised if they didn't operate some kind of shuttle there.
You are in a good central location for most things. ...especially Sea World & Discovery Cove. If you get a chance , visit the Titanic Exhibition at the Mercado Shopping centre (useless for shopping though) it is brilliant.