Played CM explore last night and felt like a complete noob not being able to hit my usual combos because of the rearranged keys. Thought about trying a hammer but said screw it. I will probably just use my guardian for crafting. I saw an Anet employee responded to someone asking about rebinding and they said you will adjust over time which is true, but when you are playing in upper level content where missing keys leads to your death and armor damage. I do not see the reason to fight through setting up the muscle memory for a character I have 132 hours playing one way. If they wanted to reduce the usefulness of the guardian they did a hell of a job because mine is going to be spending most of his time in LA just sitting around.