The assembly is easy, tail fin and fins are attached by double-sided and transparent tape. Everything sits very firmly. The suspension should not be mounted as a beginner once and the plane landing on the belly. If you follow the instruction manual (which sometimes is worth its name here), the first flight works very well. My 9 year old son had no problems with almost no wind, the pilot in beginner mode to fly safely and also to land. The safe technology works great, is allowed the right joystick go, the plane goes immediately into a rising level flight, a crash can be provoked only by force. And if a stronger gust the plane should bring even in a critical attitude but, just hit the panic button and, with enough height, all is well again. After 2x 10 minutes fly (Battery order separately), we were cocky and have the remote control in the Advance mode switched. The plane now react faster and stronger with rashes and we were able to test the Panic Button extensively. For landing we went back to the beginner mode. One should also note the plane weighs only 500gr, that is, it is very susceptible to wind gusts. In strong winds, it has been driven off rapidly and outside the Ferbedienungsreichweite. A note: the charger for the battery is only a 12V power supply, in other words you need a 230V adapter or equal to a better LiPo chargers. (I bought me the IMAX B6 Mini with power supply unit here on Amazon)