I do not own a Sebenza. Had an opportunity to buy one in person, handled it, played with it, liked it, but just didn't feel that it was enough better than the knife I usually carry to merit spending the extra, although it's clearly a fine knife, and I'd love it if I hadn't already discovered the Gun Hammer. I carry the Darrel Ralph Gun Hammer, and for me, it's plenty good enough for me not to purchase a Sebenza. I'm a big fan of 3D contoured handles and as close of a handle/blade ratio as possible, though, and Knife Center has an M390 version as well. I think it's more comfortable than the Sebbie. For me, it's the knife that ended the hunt. I can appreciate other knives, but every time I get the scratch to buy a new folder, it just ends up being another Gunny. Not everyone likes them. Nutnfancy didn't like the design, and I can see how it wouldn't be for everyone. But if it DOES appeal to you, it's a great knife in my estimation. And even better, there's a sprint run knife taking pre-orders now in the HTM forum, which will be S90V, dark green handle scales, stonewashed finish, manual Maxx Glide opening, and serial numbers for a very limited run. The other knives I've liked a lot have been the Ritter Griptilian with custom scales, the Rift, and various sprint run Manix 2's. None of those find pocket time any more, however.
I'd wager you'd get a fine knife if you order a custom from any of the other top makers as well, however.