CPT-20 : Not really True Bypass

It's a very simple unit, one butten for on/off and a screen and some LEDs for tuning. The tuning (what it's designed for) is okay. More expensive units are probably more precise, but for home use it suffices.

Pro's:

The unit is cheap, small and easy to use. The screen is nice and big and tuning it this way is good to do. Besides it looks quite fresh.

Cons:

The red LEDs are so bright you can't look at the unit without eye dameage. I had to tape them off to actually use the unit. Who designed this??

But the biggest issue: The unit distorts the sound in bypass mode! When playing a bit hard on my single coil guitar it distorts. I can imagine this being a far worse problem on humbucker or active guitars. Therefore I'll be putting it behind a true bypass splitter I still have lying around and would not recommend this unit for whoever wants to use it on a serious pedalboard.