As the owner of a 120 i think they fly great, real value for money, and a motor with plenty of power for this particular plane. So here's the problem, are they really as cheap as everyone thinks they are [im talking about all models here] considering the fact that most of these engines are buggered by 500-600 hrs [if your lucky].I know some people will come back with 'oh but my engines done 1600 hrs and running great' but i think this would be very rare. We recently pulled down a 230 3300 engine, valves burnt out, barrells out of round at 370 hrs. All services done correctly, run on av-gas for life of motor, so what the hell is going on with these things. I really hope my 2200 motor gives me a better run than that.