Review on Learning Journey Techno Hotshot Winning by Dave Hess

This is a gift for our 7 year old grandson. He already has similar items and loves marble challenges. I was told his parents had to assemble it for him because of the difficulty. They are both engineering graduates and our daughter said it took them a LONG time to put it together, a child couldn't do it and the parts were fragile - high risk of breakage. Whatever they did, part of the structure sagged and the flow wasn't smooth. We are not hitting the seller in any way, but be careful with the buyer. The kids will need help and it's not very durable compared to others who have used it.