This tuner is accurate and reads quickly as the proper tuning is reached. I like the simple two color readout. I wish the screen was a tiny bit bigger, but it is still easy to use and see.

Boy, I wish I had this tuner when I was a kid learning to play the guitar. So easy to use and accurate.

You know it's so much better than a phone app! I just leave it clamped on the head of my guitar and just play with it on. Like it fits between the B and E string tuner's no problem. Like it's super clear and easy to read and very accurate. Then I can retune my cheap strings and guitar between songs as needed.

Easily to use and lights green when strings are tune

I keep mine permanently clipped to the head so I'm only ever 10 seconds from being in tune. It stays put and the display is easy to read. As far as I can tell, it's accurate as can be. So I'm very happy.

Even though I give it 5 stars, I would still encourage a couple of improvements. There is only one button to press that creates all its functionality. You long press to turn it on and to turn it off. Once on, a short press will cycle through different tuning modes. That doesn't sound too bad until you realize that you'll never need any other mode than "C" and that an intended long press (to turn off) often times is interpreted as a short press, which forces you to cycle through the different tuning modes to get back to "C". Annoying AF.

Another thing I'd improve is that it only displays sharps. Tuning down a half step is awkward in that you have to tune to D# instead of Eb. As far as problems go, this is as first world as they come.