Much more expensive compared to other clip-on tuners out there. But holy hell it’s so quick and responsive, and really really accurate. I don’t care much about the polyphonic tuning really - but it’s a nice feature that works fairly well. For me, it’s all about the precision and responsiveness on single string tuning though.
Instead of buying a crappy, slow but cheap one.. do yourself a favor and buy this one. Nothing else I’ve tried comes even close.