The tuner works great and love the small form factor. However, you can't really put it flush against another pedal, since the power plug is on the left side and the plug will take up some room. It would have been better to widen the in/out at the top and put the power plug in the middle. If there is insufficient space, then the next best placement would have been on the right side of the pedal, since most people would put the Strobostomp Mini as the first pedal in the chain, which would normally be the right most pedal (since the vast majority of pedals have the input to the right of the output). This way, the left hand side of the pedal could go flush or very close to the next pedal in chain.
Other than that, it is solidly made and the usual plethora of different tunings (including Buzz Feiten) makes it a great tuner.