I have the metronome for a few months now, mine is red Ferrari style!
But we can go fast or slow speeds are well graded and easily positioned counterweight. It sounds quite strong enough to be heard over a piano sound. I have not tested other models, I do not like a tempo-mail, slap it mechanically, I think it's better that being the electronic models have sometimes been able to provide other functions, style tuning. But it seems longer suitable for the guitarist. Now I use it for piano so I will not use such functions. The value for money is pretty good, however there are models of twenty years seems better constructed, if this mechanism is metal, the rest is plastic!