TC Electronics Helicon H1

Great for solo use, but not in a band. Very simple to use which I am glad for. Easy control, except for the Mic volumn which almost seems like an after thought where it is on the side of the pedal. Took about 5 minutes to find the best solo harmony for my voice and I was rolling. Not easily switched from above or below harmonies without bending over and physically switching it. That is a pain. Also, if you drive the pedal with some hard vocals, it digitizes too much and kind of flakes out with jumping to different tones for the harmonies.

I've owned this pedal for a few years now, and it's a great little pedal when you put it into the proper context. No, it's not the harmonization you see from it's big brothers, but it does track vocals very well, and gives you exactly what you ask for. It can be used, without sounding too cheesy, in a lead vocalist equation if you blend the wet and dry signals properly. Where it really shines, however, is taking your backing vocals and adding harmonies to them. The bands I have played in found this to be a very good way to get around having only one real backing vocalist.

One thing to note, however, is that onstage volume bleeding into your mic can make the harmonies jump, so if you're right next to a drummer whose cymbals are ridiculously loud (like mine have been), you either need to gate it ALOT, or go without it. But I've found it's a great little pedal that definitely helps fill the harmonies when used with its strengths in mind.