The only bad said about them was by Raby and his cronies. They tried to bash the roller bearing, yet it had proven superior to the (at the time) Raby/LNE ceramic bb. Zero reports of an MB roller failing...
It’s also strange that every last LNE bb failure was due to improper installation, shaft runout or some other BS, never because of an inferior bearing “fix”.
Your MB roller bearing is rock solid.