Well packaged and good quality product. Cables and all other bits are good quality, even the small bolts are above average quality (they need to be, otherwise someone might be catapulted away).
Assembly was easy, but make sure to fix both loops around the tree high enough. I placed them at about 3 meters, any lower and butts will hit the ground.
Getting the tension in the cable is the most tricky part, you need to have a lot of strength, and the distance between the endpoints need to be pretty exact. That's the reason for not giving 5 stars.
Ro 
