I bought my TN65D February 2001. I've had a couple of minor problems since then but no show stoppers. First, the battery failed due to an internal short. No problem, brought the battery in, picked another one off the shelf at the dealership, put it in and had no more problems. I lost a CAT II ball from the left draft arm on the 3 point-found that the retaining pin wasn't located correctly as to lock the ball in place. Dealer replaced the entire draft arm end free of charge. The 4WD icon light on the dash panel would sometimes work-sometimes not. Found a loose mounting screw on the 4WD engagement switch. Fixed it & told the dealer about it. They put in a feedback report to NH. The connection link for the 3 point control lever kept popping off last Winter when I was blowing snow. I exercised the lift lever and applied WD-40 to the 3 point hydraulic lift input shaft. Told the dealer about it. Haven't had any more problems. I still have problems with the instrument panel fogging up in the center of the window. I gather this is a common gripe, but it eventually goes away after the cab heats up. I had a mild case of sticker shock at the price of the engine lube oil and hydraulic filters. (I also had to buy a set of metric tools for the tractor's tool box. I hadn't anticipated that, me being used to SAE tools with my previous tractors.)
Over all, I'm very happy with the tractor. I've had good support from the dealer, even though they're 60 miles away. I love the hydraulics. Great power, lots of lift. (I have the 32LA loader with the 72" material bucket, pallet forks & bale spear-all quick attach, of course.) The 16 speed transmission with mechanical shuttle is great, but I mostly run the tractor in the B (High) range for most of my work. Outstanding engine power, good starting in cold weather. Very reliable tractor. Surprisingly tight turning radius even without the Super Steer. I'd buy it again in a heartbeat.