Only had mine since Feb – bearings seem good still.
I’m running the 650b dropouts in 142x12mm (now in the slack setting), and a 150mm 650b Pike up front and 26″ wheels.
Soon adapt to the pedal strikes and adjust technique accordingly, though I wand the 160mm Pike air shaft and when I want a new chainset I’ll go down to 170mm.
CCDB Inline is awesome. Not got any spacers in mine as I didn’t get any, but never felt the need to get some – feels more than the 140mm travel.