TN75 Electronic Control Unit Failures?

[overload]

i am looking at buying a tn75 and have recently discovered that there are 2 computers. one for the 4wd and the other for the electronic shuttle. they are each $780. as i have read they seem to fail, are the replacement ones better than or updated from the originals? should i shy away from this model of tractor?
thanks in advance for our help

 

[mojoinco]

There are a number of versions of this model. Some use a manual shuttle shift, some use the electronic. I like the electronic shuttle shift. Clearly there is more opportunity for a repair with the electronic shuttle control, but sure is nice. Mine has only needed one switch replaced and a calibration (done at the dealer).