Band Industries Roadie Bass Tuner

Tunes well, shines on standard and on higher pitch tunings (you can tune the guitar with a capo on, try on 5th fret you'd be impressed).

Surprisingly, has troubles with lower pitch strings (I bough the bass edition 'cause I thought It should be able to handle lower frequencies better than the standard one). By 'troubles' I mean that it takes much more time to tune a Drop D's low D string than a G string, also Drop A tuning has driven the tuner crazy.
But this can be improved via firmware updates.

Has not tried it on bass and in the noisy environments.

Overall, I had lots of fun playing Open G and weird Radiohead's Open D, hence the rating.