I bought this primarily for me but knew that my son and I would play with it a lot. It took about 4.5 hours to complete, with the shuttle portion taking about 3 hours. The detail is amazing and it's fairly sturdy, but it's a Lego product, so if it falls apart, you just put it back together. Compared to other Lego kits, for the price, this is a must buy when you consider what you're getting. Shuttle, fuel tank, solid rocket boosters, robotic arm, satellite, working cargo bay doors, movable shuttle jets, landing gear, 2 mini fig astronauts for the cockpit, remote chase vehicle, mini fig driver. Well worth it. If you're a Lego fan, buy it, you won't regret it.