The right motor failed 5 minutes after I received it. I waited a month for the replacement part so far, but there's still no news. Hobbyking blames Dagu, but who knows.
The tracks get thrown and even after only 5 minutes, the interior was full of metal dust from the gears. after I get a new motor, if I get a new motor, I don't expect much.
It is a nice idea but don't buy it unless you are very patient and are willing to rebuild it.This is not a bad frame but I have had some issues with it, one issue is the track always jumps off, it happened once or twice at first but now it jumps off all the time it is really loose, due to the suspension system it is only a bent wire that starts to loose its functionality fast, I will try removing a couple of track pieces to see if it would help. Another issue I had just after 30 minutes of operating it the drive gears started to slip, the brass bushing has worn out because of the force the motor is putting on the mechanism, I contacted Dagu and they are willing to send me new parts. Only one gear box is slipping because the positioning of the motors are in different spots. Over all I am still quite satisfied with the chassis because it is all metal and I know I can take care of all of these issues, I might try installing some RC car suspensions on it.