Space Shuttle Full Stack W/Astronauts

This would be a greater toy with some minor customer satisfaction (cost effective) design corrections and a little better quality control oversight which would certainly make me a return customer and would only then recommend to a friend. My Grandson loves the space shuttle but was disappointed that the cargo bay door on the co-pilot's side kept coming off because the retainer pegs were too small/short. He was also disappointed that the booster rockets did not separate from the fuel tank as he has seen them do in flight on YOUTUBE, but the cargo door was the biggest disappointment. At 5 YOA he learned how to reattach the door with some instruction but it continued to come off with even delicate use. The only other thing I would recommend is a better (more secure) connections where he fuel tank attaches to the Shuttle using slots on the back end and some type of finger latch on the nose end that would control the separation when they want it to happen. I would also recommend some type of flexible connection for the robotic arm so it doesn't get lost.