He could be a heavy hitter himself: Just listen to the passage from Franz Liszt's Bminor Sonata (on the left side of this page), which some critics say surpasses his definitive 1932 version.
Most of the so-called problems with the B-2 are either so minor as to be operationally insignificant, or are expected occurrences at this stage of a complex weapon system's development and production.