I am still using the same Wittner Super-Mini Taktell metronome that I started with in my youth (almost 40 years!). What does my metronome do for me? 1. It calibrates my internal clock 2. It reveals my weakness in any passage that is too difficult for me. 3. It reveals the changes in my internal sense of time that I may make to accomodate passages. 4. It takes me by the hand and helps me improve one degree at a time from where I am to where I must be. 5. It confirms for me when I have accomplished developing! 6. It never dictates musicality (or the lack thereof) leaving that to me but only wishes to train my hands. What would I do without my coach and confidant? Edit: Added "Super-"