Overall, this mixer is indeed excellent. The ease of use, and simple and quick setup, are second to none that I have used.
However, I have noticed that when using it, feedback can be heard if using both microphone channels, even when one is not active. By this, I mean if connected to both microphone channels, even when one is turned off.
This is only a slight annoyance, and easily remedied, and so overall the mixer is superb; and definitely a brilliant spare mixer if not your main.