We did ten days there in Feb 2012. It was fab, but bloody hard work doing a theme park every day
Highlights for me were Disney animal, Epcot, and the two universals. And SeaWorld, once you get past the big 'its our planet and we must look after it, m'kay part, and head for the roller coasters.
It was warm in Feb, and sun was hot making queueing in the glare a sunburn hazard. I have heard in June, that can be horrible.
We had friends who were going a few weeks after us so wrote up some hints and tips for the fast pass system etc. Too much to copy here but if you want it, email me and I'll mail not back.
If you genuinely don't want to go let me know. I've a wife and two daughters here who could have bags packed for us all in under the hour
Edit: and good shoes! If you do it properly you'll walk miles, the state of some I saw in flip flops and slingback sandals was