After over 15 years, my old Braun Multimix stopped working. I was hesitant about the knob used to change speeds but it actually is way better than what you're used to. I love that it's slow enough to not be messy when working with powdered sugar but fast enough to whip up heavy cream in a snap. Better than anything else on the market I've tried and so worth the price. I use it a few times a week and can't believe how quiet it is for the power that it holds.