The compilation of the parts makes perfect sense and the drum contains everything needed to build your own models. After opening the package, we expanded immediately without guide a helicopter with 4 wheels and rotating large main and tail rotors. My son is excited at the time of helicopters. The parts ranged easily this. Although the manual provides only 3 kits, but you can build your own models as easily. The connections are tight and even small children can play properly with the built models.
While standing on the drum a warning re. Small parts and the age limit is therefore specified by 3 years, the parts are so great that I have my 2-year-old son without hesitation let himself play with it. For example, the wooden nuts and large diamond-shaped, and all screws, rings etc. are considerably larger than the plastic parts of the drum from the cheap discounters. At most, in the crane string I could imagine a threat, but these must be an infant not necessarily leave unattended.
Conclusion: This drum I would give 7 points, if I could. Only with the statement "3 model variants" is doing the manufacturers themselves any favors. These are just the kits from the accompanying booklet - but you can actually build many other models.
This drum will not be our last Baufix product safety. The old discounter drum I will soon sort out and for another Baufix box - perhaps even a second copy of this drum - purchase, so that we can also build larger and more models.
Addendum:
Meanwhile, I have ordered a second copy because the price just is very cheap (amazing considering the contained precisely manufactured and carefully rounded wooden parts with threads). Thus, the other system will be permanently removed from us and completely replaced by Baufix.