I know nothing about either one of these especially Simplicity, but i have a Simplicity dealer close. Which one is better/longer lasting? Z335 20 HP M40 Intech. Simplicity says 18.5 Briggs professional series. Simplicity is only 33 inch compared to 42 so would fit in garage better. Which one would you recommend? How does Simplicity compare to John Deere? Also are the transmissions any better than the k46 on the lawn tractor? I have a small flat yard to mow.