The Intellitouch is a compact, light tuner that is great for the musician who needs to tune in situations where light may be low or where noise levels are high. It clips on to the instrument and senses the instrument's vibrations, rather than by using a microphone as most other tuners, so you can tune during warm-up time without a problem. I play guitar, mandolin, violin and dulcimer, and use this tuner on all of them. It works on all instruments.
The tuner is accurate enough for most applications; it's not as accurate as a strobe tuner, but it is as good or better than virtually any other pocket sized tuner. It's small and light, and slips easily into your case or your pocket. It lights up, so it will work well on a darkened stage or pit. If you have it clipped onto the headstock/pegbox, you can keep it clipped on while you play.
Be aware that finding the best spot on which to clip the tuner will take some experimentation. However, once you find the right spot, the Intellitouch will work well. The tuner sometimes has trouble with the low E string on my guitar, but that is easily solved by tuning to the octave harmonic. That gets the tuner 4 stars instead of 5.