The knife is ergonomically comfortable to hold. However, the supplied blades do not meet my expectations. I'm used to those of Stanley, with whom I have the black also compared. At first they are extremely sharp and precise. However, this takes quite soon - depending on the material - from. The usual, weekly Kartonzerschneidemarathon pointed to shortcomings here. The blades blunted from sometime - those of Stanley cut even further with himself sharpness.
