A contractor over here runs two of them, there is not even an official importer anymore !!
They are lightweight but quite strong built, especially since they reinforced the rear differential and end reduction with the introduction of the two series. naked weight is about 5400 kg which isn't much for 160 hp. I know 120 hp tractors that have an aftermarket turbo, that run 160 PTO hp. No problems at all.
With these gearboxes, i dont know if synchronisation was standard. Let's say that the synchro trannies are fool-proof and the not-synchro trannies need an experienced hand to match speeds manually with the throttle pedal.
The not-synchro trannie is something to get used to, but if you know how to deal with them, the difference in performance is small.
Oh yes, the cab: there hardly is any safer drivers house to make a roll in... And plenty of room too..