As far as tuners go, i have this and the boss TU-80 tuner. the TU-80 gave out on me within a month, and this thing is still working fine three years later. I don't get what people are saying about this not being good. Unless you are deaf, you can tune with this (trust me, i had a friend use it on his first day of having a guitar. It worked fine). I use pitch pipes far more than regular electric tuners, and i love this one. Get it!

Sort of helpful if you're putting on new strings and need a reference point but beyond that pretty pointless. Note fluctuates depending on air pressure, providing no accuracy. Cough up for an intellitouch (compact for travel) or for the KORG pitchblack pedal is my suggestion.

The worst tuner I have ever used. If you blow too hard it goes sharp, not hard enough and it goes flat. If you inhale you get an all different tone than if you exhale. All in all, you will be out of breath and too tired to play by the time you are done tuning. On a lighter note, if you blow in and out of all three pipes at the same time, you will get a cool harmonica sound.