This was the lone pedal tuner on the market for years until Boss, DOD, and Danelectro finally wised up and started making their own versions. Arion's products aren't really known for setting new standards in durability but this tuner is a great deal for the money. If you were going to be stomping on this as much as, say, a distortion pedal, there might be some cause for alarm, but the fact that this is a tuner and isn't punished like regular stompers, we can recommend this. The unit tracks notes quickly and will have you tuned up or tuned down in a matter of moments. We never had that annoying flickering we've experience with other units. Bright LEDS make for easy tuning on dark stages and a generous pitch adjuster makes sure you are ready for any situation. For the price of the competition's tuner pedals you could get two of these, and have a backup.