I'm hesitating between Vex Go and Lego Education Spike for my 7 years old son who's interested in robotics.

Vex has a good organization system which is a big plus, but Lego looks like it has more cool things you can do with it.

I wanted to compare what customers thought but I have trouble finding indormation so I'm turning to you. Anyone has had experience with these products or any other?

Thank you