Qwik Tune - Snark All Instrument Clip On Tuner

I finally decided to buy a clip on tuner as I have a few acoustic guitars including a 12 string that don't have built in tuners like the more modern electro-acoustics.
This tuner works extremely well as far as tuning is concerned.I've checked the readings on an electric guitar plugged into my Line6 Podfarm and the readings coincide on every string.
As it is a chromatic tuner it is also extremely useful when using alternate tunings or a capo.
I no longer have to silence every other noise in the room when tuning as the tuner works by sensing the vibration of the string through the headstock.If required the built in mic can be used instead.It is slightly fiddly to clip onto my Ovations due to the shape of the headstock but a secure clipping point can be found with a little experimentation.This may be more of a problem on other guitars with unconventional headstock designs but this would probably be the case with most clip on tuners.
The design is a refreshing change from the more common rectangular/square designs of most of the competition and the build quality including the clip mechanism appears to be excellent.
I will add a further comment at a later date concerning the battery life as I've only been using the tuner for 4 days at the time of writing this review.I'll be using the tuner nearly everday so I'll soon find out how long the supplied battery lasts for.When it expires it will be fitted with a Duracell so I'll be able to do a comparison between the two.
A definite 5 star product!

14 MAY 2011 Update on battery life:
4 months of use (approx 20 mins a day on average) and the original battery is still going strong showing 3.1 volts on my voltage meter.

10 JUNE 2012:
Original battery has finally expired.The display started to dim but the tuner still functioned albeit difficult to see.Showing 2.7 volts when replaced with a new Duracell.

My trusty Intellitouch PT1 suffered from a fractured hinge joint [a known weak spot] that couldn't be replaced or repaired so I started to look round for a replacement and decided to give the Snark a try. This device really does live up to its claims. Attachment is secure, tuning response is very quick and the display is clear and ergonomic in the way that it is easy to read. The Intellitouch could never reliably lock on to the notes quickly enough to track a note as you tune it - this meant that tuning was a multi step process - pluck, check, tune, pluck, check, tune etc until the arrows matched. With the Snark I get a real sense of where the tuning is - not just high or low and can see the note come into tune on the display as I turn the tuning key. For slight out of tune situations the whole process is very quick - pluck, tune, done! Highly recommended, although I expect I'll be changing batteries more often than the once every 5 years that the Intellitouch required.

I have one of these nice looking (slightly more funky than most others) tuner for my banjos and guitars. Will probably buy more.

They are flexible enough to be mounted almost anywhere with nice padded feet and a double ball joint mount that swivels all ways.

Go buy.

-- As an update, I now have one on each instrument - 4 in total. They live on the headstocks.