"Actually replacing the blade does require the key, but it's as easy to use as anything else would be. Am I missing something?"
Cathy
I agree Cathy.
I have two Hegnars and like them. The DeWalt I had before them had an easier blade changing system but the quality of the saw was unacceptable. (It fell apart) The Hegner system just takes time to get used to. I do not do fretwork , just double bevel Inlays ,so there is a lot less threading the blade though drilled holes.