I have had a number of Sebenzas and had a Lochsa a while back. The Lochsa is, without a doubt, the most well constructed knife I have ever seen. The one peice handle design, the custom pivot, the blade grind, everything, are just absolutely perfect. I was so impressed with the construction and function!!! The lockup is so authoritative it's unbelievable.
That being said, the shape of the handle and the positioning of the thumb ramp just didn't fit my big hands very well and I let it go. I still miss the knife because it was just so well made, but for me, other knives fit my hand better....Sebenza included. But....no other knife has ever impressed me the way the Lochsa did. If it fits your hand, then you just can't do much better then a Lochsa IMO.