I had a BC ref1000m amp I bought here used that had a bad input board (circuit actually peeling off teh board) pop up shortly after that I sent to BC for repair a number of years back.
Experience was very good. It cost a few hundred to repair back then and repair was done in just a couple weeks and it worked well for years after.
As we know, times have changed and everything is way more expensive now than 10+ years ago, so would not expect repair of a luxury item to be any different.
FWIW.
Choice to repair or not is a personal decision. Merely having a good option to do so when needed these days is a plus for valuable items.
That event also reinforced for me what I already knew: buying expensive stuff used can be a risky proposition.
I still have a Bel Canto c5i that I also bought used years ago and is still chugging. Wonderful device! It does it all and does it all very well, too handy to not have around.