Our area used to be almost exclusively NH round baler country.    Everyone had either a 664 or a 688 and many traded for a BR when they came out.   Today you find virtually no BR's left around here, it's JD or Vermeer.   The biggest problem with the BR780 was they like to flip the belts.   The baler has different guide and less guides than the old 664 had.    The other major problem is the weak pickups and I don't remember what else was a problem, just know they were uniformly cussed at.   Cousin also had a BR7090 and it was gone in 2 years.

I never had a BR but had a 664 and IMO they went backwards with the BR.    I went to a JD 567 and they baler works quite well.