Fabulous accuracy. GREAT screen. I do wish, however, that there was an on/off button. The switch just mutes and unmutes it while the screen stays on. I have it plugged into the TUNER OUT on my acoustic preamp, and even when muted and the preamp is off, the screen is still on. So when I pack up my gear after a gig yesterday, the screen stayed on, with everything else off, and that would kill the battery unless I unplugged the 1/4" input. Maybe I am missing something? Loss of 1 star. (But while using it, it's incredibly accurate. Unbelievably so.)

I read the directions included, but they are not very well written, and the webpage does not have all the info I'd want. Should not have to go online to get it set up. It's not clear how to change screen colors, or what all the tweaks actually do, even with what I was able to find online. More, clear directions please! Loss of a second star.

But again, when in use, the tuner is the best I have ever used. Screen staying on and lack of clear directions lose a star each. It's still worth getting, but I should not have to trial and error all the buttons without knowing the edit functions. I STILL don't know what all the pre-programmed abbreviations on the screen mean and can't seem to find that info even on the site.