I was surprised that this device worked so well. My main goal was to use it for minor pitch correction and it does. It messed me up for a while hearing a chorus effect through the wedges (I use an inner ear monitor system, and got the same effect). However, listen to the vocal channel through the front of house speaker and the signal was great and on pitch. I especially like the fact that I can plug my guitar in it. I plan to get three more for our church so that all the singers are connected and have some help on days when we may not be doing well ( for none reason or another). The other features do work as well (hard tune and gender shifter), yet I have had no application for them. So this rating does not include features.