Things I liked: It only looks good in the video ...
Things I would have changed: The result of the run way assembly is to flat and straight so you need to do quite a bit adjustment and you need to do it again after moving. The design of the runway is not good.
What others should know: It didn't work well: and it stopped at ends in case when the side pieces often run behind the middle piece. It stopped often when you hit the target close the ends. It didn't run as well as you see in the video.