This is a simple-to-assemble kit and is a great introduction to 24mm motors. It features a nice fin system that assures straight fins and also has a simple plastic motor retainer to fit in your motors. You can easily build this kit in an hour or so and be out on the field to launch in no time. It is a really good kit for smaller kids to help with since the large parts and assembly method allows them to help and not lose interest while building. The size of the rocket makes for a great demonstration bird for a moderate-to-large sized field. The C-11 sized motors give it a nice slow boost and keep the altitude low enough to recover in a soccer or baseball field. The D-12 motor gets the rocket to 700-800 feet and is easy to track the whole way - you just need to make sure that you have the recovery room as it tends to drift a bit further than expected. A great rocket with only one catch - you cannot use any of the reloadable motors in this due to the plastic motor retainer. However, this rocket is more suited to the C-11 and D-12 rocket motors anywhow and the recommended motors yield great flights.