Okay, let's begin with the weight. According to Kershaw, the Vapor name is derived from the lightweight construction. Yes, it has plenty of holes in the handle looking all kinds of space-age. But, we think it still feels substantial, which a good thing. The balance is comfortable.
Despite the holes, the handle feels too smooth for heavier work. Certainly would not recommend doing plunge cuts. The little jimping there is offers virtually no extra bite for the thumb. The handle is large enough to accommodate a full grip, which lends a bit more security while cutting.
The version we tested had a partially serrated blade. The serrations on this Vapor II were ground differently than most images one might see on the Internet. They have a rounded tip and do not bite as well as one might wish. Cutting rope with this Kershaw knife felt no easier than with normal edge. The leading edge of the flat ground blade was very sharp from the factory and sliced into a tomato nicely with its own weight. When cutting into a block of cheese, the blade tended to pull to the right. Perhaps an inconsistent grind from one side to another.
With all the fantastic folders manufactured by Kershaw in the USA, the imported Vapor II seems to fall short in value. Yes, it was tight when locked, but the blade certainly could have been more secure when closed. The deployment speed is good for an unassisted opener utilizing the ambidexterous thumb stud. An odd selling point is that it has a removable pocket clip. So, it is one-size-fits-all or not at all. We would say that the scales used on the Blur and Whirlwind provide a much more tactile surface for serious handling. It is a good looking stainless steel folder finished in black Ti-Nitide, and is sure to have an audience that enjoys this knife for EDC.