I'm a solo performer. I've always wanted a way to add harmonies to my vocals without having to hire background singers (You know how they can be.......... ) I came across this device, read the reviews and decided to buy one. Good decision! I'ts added so much to my vocal performances. It's simple to use and the only difficulty is getting used to punching in and out at the right times in my songs. It gets easier the more I use it. There are probably other, more expensive devices available with more features, but for the money, this one works just fine for me!