Hello Kunsthaus,
My collection has a variety of knives, some Spyderco, other brands and 4 CRK's although only one is a Sebenza. For a long time I didn't hold a Seb in very high regard, an opinion that was based on ignorance for the most part. Eventually I had to give one a try and bought one (along with a Green Beret) with a fabulous offer, if I didn't like it, I could send it back as my credit info wouldn't be processed for a week. It never went back to TNK.
They are not for everyone so be prepared to possibly be underwhelmed, but for me, a wannabe machinest who positively enjoys fine tools and machinery, it is the holy grail of knives. I have a fine custom knife in my small collection that cost more than a decorated large Seb (have a plain small Classic). My next knife will likely be a large decorated Sebenza. Very, very nicely made tools, easily my favorites. Mine was very usable sharp out of the box, but me being me, I fooled with it to get it a little sharper.
Spyderco makes a fine knife, no doubt about it, but after "x" Spyders, my opinion is that it is good to save a few Spyders cost and take the plunge for a Sebenza. One of the most popular thread themes here is, "now I get it, now I know why a Sebenza has the reputation it has".
Let us know how it works out for you.