We have this but have not taken it to disney before....and we love it. There are ceratinly some things that could be better. The front seat doesn't really recline much...but if it did, then there wouldn't be any room for the kid in the back. It is hard to get into the storage area in the bottom.....the back seat does slide but it isn't easy to do. Cover really only covers one or the other....not really big enough for both. It is pretty easy to collapse but I seem to always pinch something or it won't close all the way because a strap or wheel is in the way....but, considering the size, it does collapse pretty flat.
Overall, it is wonderful to have only one stroller for 2 kids because our older son (just turned 4) doesn't really need a stroller but it is nice to have a place for him to sit down instead of carrying a tired kid on your shoulders. We picked this style vs. the side-by-side because it is so much easier to get through tight spaces (doors, stores, etc.)...it is a little longer than a standard stroller but nothing you can't get used to.
Also, I'm not sure what the max height is but we still use it with our son (about 43" tall) and haven't had any problems.
