I am a HUGE fan of the Slysz Bowie, and the Spydiechef shares it's DNA to a degree. The size/weight is very similar, and the ergos aren't as far off as the less conventional design might make you think:
The Spydiechef lacks the contoured handles of the Bowie (
), which perhaps keeps it more accommodating of different food-prep type grips. The matte finish of the handle is less polished and almost tacky, which is much better when wet than the Bowie or Techno.
Unlike both other
Slysz designs, this one has open back construction instead of a backspacer, which I initially thought was to aid in cleaning. However, the amount of standoffs and lanyard barrel complicate washing bits of food out. Probably a non-issue, but the K2 is the biggest folder I own and is held together by just two bolts. This would've been an ideal situation to try something similar IMHO. (Marcin's designs seem to usually have 3 bolts in back and a lanyard, despite the Techno vs Mouse, so this may be a signature of the design.)
Minor detail, but the cutout for the opener hole and lock is noticeably smaller, making both processes feel a little more exacting.
So far I really like this knife. It has a very nice balance and the blade/handle angles feel much more natural in hand for most cutting tasks than pictures may suggest. I spend way too much time using knives like my GB1 in the kitchen (which admittedly makes no sense), and really look forward to using the Spydiechef for what it was designed.