I had the Klein, my mate has two Mavericks. The basic suspension set up is the same as the 1st gen Maverick. The Klein uses a cheaper mono link with bushings compared to the magnesium link with bearings on the Mav. Maverick introduced a replacement bearing link for the Klein. The later Mav have a shorter front section to the monolink to alter the feel of the suspension.
Overall good bikes, but I prefer the feel of my Yeti