I don't know anything about tractors and automatic transmissions, but I was reluctant to get anything but a manual transmission when I bought my Kubota. I had no regrets as a result of my choice. If I bought another, I would still go with a manual. However, for those who didn't grow up with manual transmissions in cars, an automatic might be a better choice in a tractor. Just seems they would be less durable, but that may not be true.