I have no Bokers but I have several Cases. When you get a good one they are very good. But I highly recommend checking out several of the same model before buying, the same as I would recommend when buying a Benchmade.
Before I knew this, on two occasions I bought Case knives that I had to go back and exchange for another of the same model because on one the blades really rubbed into each other, and on a trapper I could not open the blades without breaking a nail. The replacements I got are fine and very solid.
I will say the Boker pocketknives are very attractive but IMO a bit expensive. Plus, I prefer rust-resistant steel, and a lot of the patterns they make that I like happen to be in carbon steel only.
Jim