I bought this tuner,more out of curiosity than anything else,as i wasn't sure if it would work with my flute,but it's cheap enough to take the risk.The only drawback with it in my view,is that it could do with a flexible arm on it,as when it's clipped to the flute,unless you have eyes on the side of your head like a horse,the screen is difficult to see.The fact that it lights up green when it is in tune does help in this respect,but it's still a bit awkward.I've checked the tuning with my trusty microphone type tuner,and it's spot on.If you are a player of an instrument where you can see the screen more easily,this is well worth buying,as using microphone based tuners in noisy places is a nightmare.
These are great little tuners. I have had one of these for a few years now. Let me tell you something - I have a real problem with my eye sight and competitive tuners are very difficult for me to read. These ones are crystal clear, are accurate and easy to turn on and off. Another little feature I like about them is that they auto switch off after a certain amount of time. Seems like an obvious thing but I had a fender one which never did so the batteries quickly wore out
Battery life is pretty good (depends obviously on how much you use it) I gig 2-3 times a week and the batteries last a bout a year but they are standard watch batteries which cost a few pennies to replace so no need to break the bank
At this sort of price Iwould buy a few (I usually do) as they have a tendency to be borrowed and forgetfully not returned
Great tuner, great price and very clear if you have problems with your eyesight