Specifics. My tractor is not used hard, only 1100 hours and 3 years old. Hydraulic, coolant and oil leaks at 20 hours, turbo replaced, heater resistor, fan switch, syncroniser for 3-4 gear, all gear shafts replaced, ring and pinion found to have a lot of wear while it was apart and replaced, pto intermittently stops working, clutch spring broke, etc.
Sure, other then that it's a great tractor, except the 3pt hitch won't lift much.
My neighbour is having major issues with his new 7r, just saw a new massey in his yard. Also know a guy with 3 6m's and two of them have been in the shop for major repairs at low hours (transmission problems in one, not sure about the other). Also know of a few people with 6d's with trans problems.