We've never owned one but around here people say to stay away from them because when, not if, they break down it is usually cheaper to replace the trans with an 8-speed than to fix the select-o-speed. I would also be concerned about the availability of parts. I've had four fords with the 8-speed and really like them. My 7600 and 7710 have dual power which is really nice in some instances, but not necessary. The 4000's are nice tractors otherwise and have a good reputation around here. They are easy on fuel yet strong enough to run a haybine or small round baler. Hope this helps.