operating the metronome is badly designed.
One of the most annoying things when using the TU-80 as a metronome is the way you have to select the tempo. You'd assume this would be the number one function on a metronome, but no, you have to push the "select" button three times before you can change the tempo: the first click selects the rythm, the second one the meter, and then, finally, the third one selects the tempo function. Then you need to push the up/down buttons to change it. Why all this hassle when all I want is a simple click per beat?What a difference with the 'large round knob' variety... where you simply turn the knob to change the BPM.A second, minor gripe is that you can't switch off the 'in-tune beep'; while it is often a handy thing to have, sometimes it's annoying.And indeed, the tuner has a hard time when there's background noise. I feel like a grumpy old man when I need to ask the members of the band to be quiet because I want to tune my bass. Every time again...