In July it's worth it for the air conditioning...and maybe a nap.
If your family enjoys Ellen, then they will likely enjoy this....it is worth doing at least once to determine if it is right for your family. We enjoy it, but it's so long, it's really only "worth it" to us if we need the break from heat or walking or just to rest. Not unlike the People Mover....it's not something on our must do, but it's a great relaxer. I do find it interesting enough that I will watch, rather than zone out or nap (unless I'm really tired). There are several youtube videos, some full length, so you can whiz through it and see if it will keep your kids entertained.