Road Trip and EE for younger kiddos

So I think for this year, for our history study we are going to settle on Road Trip and/or EE. I like both. I know you can use them for as young as the K level. How well do the kiddos at the K/1st grade level benefit from both (or either) of them? I’m thinking we may start with Road Trip since it goes over the USA history and landmarks and such, then do EE next year…but I guess I would like a general overall opinion and input for how these work for the younger kiddos. THANKS ALL!

This was a previous thread which gave a lot of information about both! For what it is worth, I am planning to use EE next year. I will have two first graders and a kindergartener! Expedition Earth or Road Trip USA first?