I have about 100 hours less on my 2012 TR320. The only issue we have had to date is the upgrading of the EH control handles and the latest EZ EH update. It has been a really dependable machine. You can have a CASE dealer run the PIN to find out what EH upgrades are yet to be done if any. They are free of charge. There was an update on the lift cylinders to heavier versions to increase lift capacity. I just had that done and it helps increase the lift arm breakout.
Its very strong machine. Cab is nice, very easy to service. Fuel useage is very reasonable for the productivity of the machine. I have the air/heated seat, its just a nice machine to spend all day in.