terrible

I am an engineer and retired. First time it took about two hours. Then when I tried test run air circuit worked but booster motor did not and the car jumped from tracks. Then I redid the tracks in another half an hour and tried still the car jumps off the track. Then I started playing with weights and track. Still no success. Meanwhile my grand children 6 and 8 year old were getting impatient and questioning their grand father's engineering knowledge.

A fun toy for fathers and sons.

I was going to by the slimecano for my 4 year old son, who was practically begging for it, but after reading the horrible reviews, I opted for the Tech Trax Airstunt Challenge set, which only got bad review, most of which complained about the set up time, and also about how exact you have to be with the layout.

Really Neat Toy

I must be a genius because it took my 6 year old son and I 2 hours to set it up and it works perfectly. Yes the manual is large but it only helps for the not so genius people. This set is for 8 and above but what the heck. My boy loves it and he enjoyed building it with me.