Great at tuning. But mine has been a complete and total failure. I have never been more disappointed with a piece of gear. Very nice tech support. Mine went in twice and came back broken twice. They offered to 'work' on it again but since I'm 140.00 in plus tax, plus shipping it twice (20.00) and the hassle of phone calls and their online system and a terse note from them that they told me wasn't intended for my repair (unbelievable) when I asked about it.
I only wanted to use it to intonate guitars on my bench and for tuning prior to recording and it hasn't been up to that rigorous activity.
When it works it is a great tuner... but I feel totally ripped off and frustrated and now they have hinted they would replace mine, but I'm not sure I'd ever trust it...
So, I'm buying a turbo tuner. I also have decided this will be my last response on a peterson thread. I cannot be nice or objective about the experience. If there is a Mr. Peterson and I ever meet him, I will deposit his tuner in the spot that his tuner came from.
The world is an amazing place. Go poke a whale."