I was worried that the ARF would be too complete and I wouldn't understand what I wanted to know about the basics of the heli, but was totally wrong. The parts that already come complete seem to be the ones that would be really frustrating and time consuming, as well as the factory knows how much to lube the areas. You will get a good handle on the rest of the assembly you will have with the ARF version. I am mechanically inclined, and have plenty of patience, and HIGHLY recommend the ARF, you won't regret it. Also, there is plenty of fewer things to go wrong.