I own IH but have many NH combines all around me.
They are in my mine the second best combine out there. IH being first.
Simple to work on and reliable. At 1900 hours there is alot of life left in that combine. I know of a tr70 that made it to 4500 hours with minor repairs. Not many changes were made from the tr 70"s thru the tr96"s. So parts are available.