I'm hesitating between [Vex Go](https://www.vexrobotics.com/go-kits.html) and [Lego Education Spike](https://education.lego.com/en-us/products/lego-education-spike-essential-set/45345/) 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