boobar,
Even my small Sebenza elicited gasps and questions at work in the beginning, keys, scissors and fingernails were the norm. By the time I left, one female was carrying a 4" liner lock and no one thought a bit about it. Unless I am flying somewhere, my small Sebenza is with me, I cannot think of a more practical or usable knife.
For me, a small Sebenza is the largest practical folder, any larger job would be better done by a more specialized blade. If I were a rancher or a LEO I might think differently...perhaps. BTW - I always carry more than one knife.
Enjoy your Sebenza,
Steve-O