We were there last year for Pres Week and the year before and are going again this year. It's doable, you just have to plan. We got there very early and by noon when the crowds picked up, we left. By that time in MK, we had done the race cars, Buzz twice, Stitch, BTMR, SM, POC and a few other ones like Small World, all with little to no wait. Since we had been before, those were the ones we really wanted to see. Unfortunately, by the time we headed to EPCOT, all the FP were gone for TT and Soarins FP weren't until the later in the evening. So it's possible but the key is plan ahead and go early.