I have this tuner (and others) for several years now. It m'nerve since the beginning so I decides me you know. Yes it is automatic, so there is no button to press or dplacer switch to change the string, the display is enough contrast.
But what and very Vervant is this instability that has this thing inability to remain quiet. I only used on acoustic instruments (or electro acoustic, guitars, mandolin ...), and even with the silence, the LED does not ADOPTED to walk, jump from one c t the other, I always feel very wrong with this thing. Under the same conditions, the built-in tuner of my Zoom504 acoustic is very stable and prcis HIM. But it must be cbl and food that's balls.

Me with all fawns I only like the needle tuners but I found more. I rtalonne them with GBF if necessary.

I dconseille buy this tuner that works, that's for sure, but poorly ...

Edit 09/26/05
I met this summer two other users of the GT-3 also drouts and disgruntled than me. This is not a story of patience, this tuner is simply unstable.