I bought one of these for each guitar, because I liked the size. There is something unsightly about an awkward looking device clamped on to your guitars head stock on stage. This one is much less noticeable. That being said, I have since discovered that it doesn't respond dependably to all strings when plucked. I overcame this by plucking the harmonic on the 12th fret for the strings that don't register on the display. The low E is especially problematic. The other thing that seems to contribute to this problem are light strings. One of my guitars has a lighter gauge string set that the tuner has more difficulty sensing the note being played. In spite of this I really like this product.