I have a 535 3, the one with carbon fiber scales and S90V blade. It has seen regular use and held up well. Sharpening is a chore, but once it's popping hairs, it'll stay like that for a long time.I've never cared for CRK knives from a style and ergo POV but I know they are loved by many (most?). I will say that after returning the original Bugout (with the blue scales) a few years ago, shortly after buying it, I got the 535BK 2 as a replacement and it's been great. This style knife gets light use vs. the little SAK Executive or Ambassador I also carry daily but the 535BK 2 is a Goldilocks knife for me of that size and style. I also have their Mini-Presidio, and a small assortment of Mini-Grips. All great and functional knives for my interests. I'm not a collector, and I don't look at knives as artwork so my take is probably quite different than many here.
A very nice knife, but there's no competition to a CRK when you use it. I mean, of course the Bugout gets the job done. But the feeling of quality and workmanship people won't stop raving about when they talk about CRK is not there.
I think I found out what is bugging me about the Sebenza, especially when comparing it with the Bugout.
The finger choils - or at least the way the CRK forces you to hold it leaves a somewhat large gap between the point where your hand ends and the point where the cutting edge starts.
On the Bugout that's a lot closer together. I would estimate that makes the blade of the Sebenza protrude from the hand about an inch further. The blade on the Sebenza is not that much longer, but the position makes it seem so.