I saw the controller on banggood for only 100€ with 1000mw power ([US$109.99~156.99] JumperRC T-Pro V2 2,4 GHz 16-Kanal-Fernbedienung Hallsensor Gimbals ELRS/JP4IN1 Multiprotokoll-OLED-Bildschirm OpenTX/EdgeTX Mode2-Funksender für RC-Drohne RC Teile from Spielzeug Hobbys und Roboter on banggood.com My question is whether this controller is usable or should I rather keep my hands off it?