Band Industries Roadie 3 Tuner

A good idea, implemented very poorly. It's only able to complete tuning on half my guitars, and the ones it does manage it doesn't get right. I still have to have a regular tuner connected to fix up the tuning after the Roadie is done, because it's so far off on several strings every time. It's faster to just do the whole thing manually.

For the ones it doesn't manage to tune at all, it gives misleading errors. E.g. it will tell you that you have it on the wrong string, when the real problem is that it uses so little torque for smaller adjustments that it's not always able to turn the peg on cheaper tuners (e.g. my brand new PRS SE). Considering the age of this product, if it was fixable in software they would have done it by now, so they presumably neglected to include hardware to detect if the motor is turning.

Unless you're very lucky and only use guitars it's able to tune, and don't care much about accuracy, this is pretty much a very expensive string winding tool.