We always go to EEMH at MK. It may look like a lot of people in line to get in, but it's really not. Get there before the EMH opening time & when they let you, go for it. You should have a couple hours to get stuff done & get a couple of fast passes for later before it gets too crowded. If you have little ones, I suggest Dumbo 1st, if you plan on riding it. Otherwise, The Mountains (not sure which will be open now during EEMH) 1st to ride & get FPs. If you do not have park hoppers, plan for crowds later in the day, so you may want to try & work with FPs for Peter Pan, Pooh, Buzz, & Jungle Cruise as well or ride at very end of day or during parade/fireworks. All of this depends on when you are going of course. You will have no trouble & will get tons done at a slower time, using EMH. At higher crowd times, you can get more done in those 1st 2 hours then normal, but maybe still not everything. Good luck.