There is a lot of nostalgia associated with Epcot, the problem is that is all it is left in those pavilions especially.
After fondly remembering this park and the rides from the 80s, we skipped it until my son was finally in elementary school.
What did my kids like there the best? Frozen, Soaring, Test Track, Baymax M&G, Turtle Talk -- all things added since the 80s to spice up the park. I enjoyed Living with the Land and Imagination ride simply because of my memories, but I have to admit, they are pretty darn boring attractions now.
The other problem with the park (that I remember) is the long hot walks between attractions. That wasnt so bad previously when there were more things to do inside the pavilions, now -- not so much. It tires out the family.