I am seriously considering Toro's heavy duty commercial mower but not sure which engine to go with. It is offered with either the Kawasaki KAI, or Honda's GXV160. I know the Honda is a great engine, but have no experience with the Kawasaki. I believe the KAI is a bit more powerful than the Honda, but not sure of overall reliability. Not real thrilled about the idea of having to change an oil filter either, but something I could live with. Also the Honda version is nearly $400. more. Is it worth the difference? Thoughts & opinions welcome.