The Mnandi does take some getting used to. When I first took one out of the box I thought I'd cut myself on the sharp nick opening the blade. Then I looked at it closely and whoa, that's actually a chamfered edge . . . it feels sharp but it really isn't.
The first time I wet the knife the ceramic ball dragged badly but a dash of lube solved that issue.
I have mid-sized hands (a small Sebbie is just wider than my palm) and once I got used to the odd way you open any frame lock folder I have had no problem with it. Sure, it's a smaller handle. Physics says you'll have less leverage on a smaller handle and depending on your hand size, it may feel like nothing more than a paper knife.
One thing about CR folders, every one is just enough larger than the blade for safety. You buy a sub-3" knife, you get a sub-3" handle. It is a matter of personal taste. I find every Chris Reeve folder to be a remarkable example of a highly refined, minimalist design using quality materials and very close tolerances.
By definition, the Mnandi is a gentleman's knife, suitable for office tasks and light cutting. Put a rectangular Sebenza-style handle on it and you would have a completely different knife.
As for scratching the blade . . . I collect knives to carry, not to admire in a safe. Each scratch on each knife is a memory of a day in my life. Like anyone else, I don't like to damage or mar any tool but stuff happens. You can buff it out a bit if you like but time will achieve the same result.