i have herd that they are very good engines i a thinkin of replacing my twin outboards on my big boat with them the 225 ways less than a yamaha 150 so they are wery light and still have the preformance of a two stroke and all the good things of a fourstorke. plus you dont need to take them to the dealer for 3 full years after you buy them no breakin period and if you run out of oil you cant damage the engine.