Everything worked well out of the box. It’s challenging to launch, but once in the air, relatively easy to fly for those with RC aircraft experience. I highly recommend learning about paragliders or PPG’s before flying. Understanding how they fly and such things as how the lines work and should look will help you understand how to properly preflight it, reducing issues launching and during flight. One twist in a line (super easy to spot and to fix) and it will be virtually uncontrollable. With the lines set properly, it flies very well. I also recommend wearing a glove on your launching hand until you get the hang of it. Very easy to cut yourself on the prop. The electronics work smoothly and without any issues and flight time with the provided battery was better than expected. If it came with more detailed information on how to properly preflight check the lines, how PPG’s function, etc, I would have given it five stars. Lucky, I fly paragliders and RC aircraft , so I have an advantage flying the RC version. If you don’t have experience flying RC aircraft, I highly recommend finding someone to help you get started.