Does the job!
This is great for it's intended purpose. I have a Roland CM 220 monitor amp that has no outputs. Having this allows me to route signals to our PA and also have a return line from the PA so I can hear the vocals and insturments. I have a Yamaha DTX III drumset in one stereo channel. I have a Korg wave drum connected to the second stereo channel, and I am using the mono input on channel one for receiving vocals. I am sending a mono signal to our PA through the aux send which allows me to have complete control over my inputs and outputs. Very well built. The instructions could stand to have a litle more detail, but the unit itself works excellent!