I got my large regular Sebenza about 9 months ago and it has become my main EDC, the one clipped to my RF pocket (I also carry multiple knives/tools as well). IMO it is the toughest and most solidly-built folder I own, and the precision is top of the line. I also love the S30V blade steel. It holds an edge very well, but when it needs resharpening it's fairly easy on my Sharpmaker.
I will mention that my new Sebenza, out of the box, required me to thin out the edge bevels, especially towards the belly and tip of the blade, which did initially require a bit of work. But since that was done, it's become an awesome cutter.
I personally prefer the tip-up carry position of the Sebenza. It clips solidly with that little extra dip/bend in the clip which secures it better, and I've never had mine snag or come partially open in pocket. The thumb stud on mine is one-sided but I find is far more comfortable compared to some other thumb studs (i.e., Cold Steel, etc.). And the Integral Lock design seems to me to be the strongest, most reliable type of lock, not only due to lack of small moving parts, but also in its execution.
Jim