Most of the problems are caused by the ignition system, with a little bit caused by throttle linkages.. I gave up on the stock FM radio soon after I got the baja because of small problems and I just didn't trust my investment to a cheap radio.. I got the React and it works great.. same would go for the spektrum... I can't say the radio is total junk however.. I use it now in my brushless Rustler and Brushless motorcycle.. just nothing with ignition system.. Range on mine is fine, never had issues with that at all..