Guilty as charged...
My impressions after approximately three whole days: Definitely a winner, no question about it. I think the Mnandi is a design that incorporates both listening to customer (and non-customer) feedback, and also gives CRK a more customizable design than previous models.
Latter observation first: the inlaid Sebenza has been very successful, but there are limited options for inlay materials due to choices CR made in the inlay method--which sacrificed artistic possibilities in order to maintain working ability. The Sebenza and Umfaan were designed as working knives first, decorations came later, and had to fit into the performance envelope. The Mnandi, on the other hand, was designed with decoration considerations from the start, and CRK has stated that there will be a wide range of inlay materials available. Thus the Mnandi can show the "art knife" side of CRK, without compromising the working ability of the Sebenza design. This is not just a pretty face...while there's no way I'm going to test this, the Mnandi looks to have sacrificed very little strength to gain its good looks. The velvet glove does not compromise the iron fist within.
Response to feedback: no need to detail the massive amount of "what's wrong with the Sebenza, why I don't like the Sebenza, etc." discussions in this forum and elsewhere. Possibly I have a biased view (since I am in this camp), but a common complaint has been that the Sebnenza has simple (brick-like?) shape that emphasized working ability at the expense of ergonomics. CR has been listening, and the Mnandi is his response. To be succinct, the Mnandi is COMFORTABLE. Hold one, and you will instantly see the major difference from the Sebenza--curves. There are very few straight lines and 90-degree corners to be found on the Mnandi, and the design "works" both in a visual and tactile sense.
God is in the details: as in the Sebenza, there are outstanding design features in the Mnandi that are not immediately obvious. The clip is like nothing I've seen before, not formed from a flat strip but a three-dimensional design that is both strong and elegant. The opening method is completely in harmony with the design goals--a thumbstud would have been out of step with the smooth ergonomics found elsewhere. To call the opener a "thumb nick" is convenient shorthand, as this is far more than a narrow horizontal slot in the blade.
It's probably obvious by now that I am very pleased with my Mnandi.
Note that all the above is strictly my own opinion, and is based entirely upon my own limited information and observations. Your mileage may vary; objects are closer than they appear to be; do not fold, spindle, or mutilate. Or at least do it in private...