They are cheap, but have cool designs.
Personally I would rather have a good steel and a quality knife over the fancy designs.
I have bought several of the Boker plus line, and in most case there are better knives in the same price range. Often they lack in the fit and finish department, and I am just not satisfied with the 440c. It does get sharp real fast and it can get scary sharp, but it doesn't hold up as well as any quality steel like VG10 or Kershaws's Sandvik 14c28n, which can be had in some cheaper knives.
Depends what your going for. If you just want a cheaper knife with a cool design, or a copy of some higher end customs then they are alright, but if you want to use the knife even for medium use tasks thn I would look elsewhere.
Just my 2 cents......