"Not sure what others' problem was"
I decided to go ahead and purchase this knife, even after reading the negative reviews concerning difficulty fitting the blades. I have just used the knife for the first time today, and I must say I can't see what the problem is! I was able to install the blades very easily, and they remained firmly in place while carving. I can only think that the people having trouble were either not pressing the blade release buttons in enough while installing the blades, or not holding them in. The blade 'tangs' also need to go INSIDE the little plates that move when you press the release buttons.