BB7’s are £ for £ the best disc brake available, period.
Look, that’s your opinion. I get it, I really do. But I have to disagree.
I hated mine so much that I took them off and threw them away. Literally binned them. No amount of resetting the caliper, cleaning the discs, putting new pads in (again), twiddling the red dial etc did the slightest bit of good, and after three months of juddering my way to a belated stop, I flipped.
I replaced them with a set of £100 secondhand Hope Mono Minis, which were light years ahead in every possible way. Not perfect, mind you, but so much better you couldn’t believe it. Far better value for money IME