Anyone Ever tried one of the Yaks?

[Sdspeed]

Offers some versitility when it comes to getting comfortable and moving about.I'm trying to keep an open mind since I have low back and leg issues. Second pic is of a guy in Ca. that out a trolling motor on it and set it up for ocean use.
http://www.wavewalk.com/

DIMENSIONS

Total Length: 136" (345 cm).
Total Width: 28.5" (72 cm).
Weight: 59 lb (27 kg) without added accessories.
Hull Width: 8" (20 cm) in the cockpit area.
Saddle Width at Bottom: 12.5" (32 cm)
Internal Hull Length: 136" (345 cm) available for storage.
Cockpit-Opening Length: 72" (183 cm). Internal cockpit space is longer, in the hull tips.
Cockpit Height: 17" (43 cm) from the bottom of the hulls.
Saddle Height: 14.5" (37 cm) from the bottom of the hulls.
Storage: 14 cubic ft (100 gallons ; 0.4 cubic meter) of internal, dry, always accessible storage space, inside the cockpit, hulls, and 4 hull tips.