Price paid: € 80
Purchased from: KeyMusic
Sound — 10
Can be used with every setup obviously. Also works without the output being connected to anything (just guitar to input of pedal). Haven't tested it with my semi-acoustic though. Doesn't change the sound at all. It's like being plugged straight in to the amp.
Overall Impression — 9
I've had it for about 3 months now and still runs on it's Original battery. I would like it to have an indicator for the battery though. Especially for the hefty price. (I think 80/110USD is a lot of money for a tuner). If lost/stolen I would buy it again, because it works just great. I'm gonna give this section a 9 because I really think this pedal is sold too expensively.
Reliability & Durability — 10
Reliability: As long as there's a battery powering it, it will work. Would (and have) definitely use it for gigs. That's actually the reason I bought it. I needed a tuner with a screen that's visible in bright sunlight and on a dark stage. This really works as advertised. Great visibility. The metal housing is very sturdy, I can't see it get damaged unless you abuse it by throwing it repeatedly into walls or something (in which case you shouldn't be allowed to have one in the first place imo).
Ease of Use — 10
How hard can a one button tuning pedal be to use? Plug guitar in input, plug output to your amp. Stomp on button to mute output to amp and tune. It switches automatically between multiple string mode and single string mode depending on if you strum all strings or just pluck one. Accuracy is great, although single string mode is noticeably more accurate. Polytune mode is extremely useful to do a quick check on stage to see what strings are actually out of tune, and then go in and tune those strings separately when necessary. Lot of options, but this pedal doesn't get complicated in any way. There's a small button on the side to Switch between needle mode or strobe mode (strobe mode has accuracy of 0.5ct and needle mode 3ct). There's another small button to change tuning to drop tune modes. Lot's of options, these are to set the Polytune mode to your drop tuning choice. Needle or strobe mode automatically detect the note your playing so you can easily do a manual tune to half step down while the polymode is actually set to standard mode. There's also a usb port, but consumers can't do anything with it. It's used by TC Electronic to service the pedals. Has a power in 9v and a power out 9v plug, which is very useful. Although I wouldn't recommend powering other pedals while running the Polytune on a battery.