In a discussion about Alex Rosamilia's signal flow in a [Premier Guitar article](http://www.premierguitar.com/articles/21588-rig-rundown-the-gaslight-anthem), it is stated, "The signal starts with the guitar running into an Ernie Ball VP JR volume pedal, and its tuner out hits a TC Electronic PolyTune Mini Noir."more
This tuner is good. Not great, but just good. I like it because it takes up about half the space of a Boss tuner. Lately I began to notice a delay in finding the note I'm playing. Or it would just be figuring out all the strings instead of the one I played. But my guitar is in perfect tune after all the struggling. I guess that is the most important feature.
It is a tuner... you can tune your guitar with it. You can strum the strings and see how out of tune your strings are and then tune each string individually just like you would with a normal tuner. Honestly it just comes down to the awesome LEDs. Super easy to read.
The Noir replaces my Hardwire HT-6 which was good, but this thing is great! The read out of the Noir is nice, bright and easy to read. The display automatically switches between poly mode with a full note spectrum and single string tuning with a larger readout. The only way the Noir could be better was if TC Electronics provided it in the Blacklight aesthetic. All said and done, the Noir works like a champ with a micro footprint that's be hard to beat.
I just bought this pedal, and it's fantastic. I'm writing this just before using it with my 8 string guitar, and it made me tune every single string perfectly, also the 8th string which I use in low E (the same E of a bass guitar)
This little beast has done well for me. I've heard people complaining that the poly tuner isn't accurate, but if you actually read the directions, set the neck pickup and strum with your thumb, it's right in line with the results tuning single strings. At less than half the space of a TU-3, and like $30 less I consider it money well spent. Looks good too.