the only problem with the kit was using the recomended servos hi-tec 225 all the servo holes needed enlarging it took quite a while to do with a dremmel and some files. and the engine mount will need modding if you use anything larger than a irvine 39. ie pushing out the captive nuts on the firewall filling the holes and then redrilling the position for the engine mount. apart from that all went well. as a normal artf build. all the hardware supplied i have used and i think it is up to the job. time will tell.