Takes a few minutes to assemble. Connect up your receiver. Charge a 3S800 pack and you are ready to go. Flight stabilisation system supports Beginner (no inverted) and Expert (stabilised only) modes. Low stall speed enabled me to fly it in quite a tight circuit and inverted flight was stable.

H-King A-1 Skyraider with ORX Flight Stabiliser: ESSENTIAL RC FLIGHT TEST (7 min 12 sec)