I think the B&W are a bit fussy but worth the effort.  If the gear is low distortion, the rest follows.  The speakers will let you know if there is noise somewhere in your setup.  Fortunately, specifications have gotten better across many manufacturers and they have also figured out which measurements are most important.  Lots of fine gear now at all price points.  

The Mola Mola amps are small wonders.  The amps easily drive the B&W,   Very natural sounding, no frequencies enhanced or diminished.  The pairing is very musical.  As the volume is increased, one gets the sense of speakers just absorbing the power and getting bigger.  It is a fun setup.