Putting the Extreme Coaster together was straight forward and not difficult. I set it up indoors at first to gauge how sturdy it was. As soon as my two grandchildren saw this Coaster they were thrilled. Both the two year old and the three year old were nervous about going down the ramp at first, but by the end of the first day they couldn't push the car up to the top fast enough so they could go speeding down again. I easily removed the ramp where the brace connects with just two bolts, making it easy to move outdoors and set up again. Worth every penny making them this happy and excited about getting "fun" exercise all day.