I would give it 4 and a half stars, but that's not possible. There's nothing to complain about, an excellent, fast and accurate tuner that even picks up a hook on a five-string bass beautifully and without any hesitation. The only slightly bizarre thing is that the power connector is on the left side, which is probably the worst possible option, because it defeats the purpose of a compact pedal with jacks on top, which is supposed to stick to the neighboring pedal with its wall and save space. And because it's a tuner, you'll typically want to place it at the beginning of the sound chain, i.e. on the right, so you want its left side to be adjacent to the neighboring pedal. And that's not possible, because the power jack sticks out from the left side. Unless your power supply also supports USB. In that case, you can power the tuner via the USB-C input located on top.