I had ordered a Mnandi and then returned it for a Sebenza after handling it. The Mnandi is a superb gents knife, no doubt about that, but I was looking for more of a general EDC. From seeing pics I though the Mnandi look just slightly smaller then the Seb, but when actually handeling it I found it to feel much smaller. I love my Seb and find it to be the perfect EDC size. It's robust enough feeling that I don't worry about it and smaller enough to carry easily.
Now, if I dressed up often and had need for a smaller, classier knife (though my sm classic wood inlay is reasonably classy) the Mnandi would be perfect. Maybe once I get out of school and get a real job where I have to dress up for work I'll get one. Until then my Seb fits great clipped to my jeans pocket.