I am a big fan of the offerings by KAI. Kershaw, Shun and Zero Tolerance. Last year i bought my first "higher end" knife which was a ZT 0350. I have owned Kershaws for years with great results and decided to check out a ZT. The 350 is awesome, i love it. A tiny bit small in the hand but that is ok. I have been looking at the 0550 for a while and decided to get one. I got it yesterday....and all i can say is WOW. The ergonomics are perfect, fit and finish is extremely nice, the blade was sharp.....etc. It deploys easily, lock up is super tight, no blade play in any direction, just an over all tight package. If anyone is on the fence concerning this knife, it is worth every penny. I couldn't be happier. Thanks to all the posts and information provided on this forum concerning the ZT 0550.
LL
LL