Using two evenings a week for 3 years, 300 people max.
What is appreciable is the ergonomics of the system. This is handy, connected and ready to play in 10 minutes flat. It's tough enough, believe me, mine has been expensive. Level performance is good.

What I like least is the sound quality. Lower a bit messy, powerful but not very deep. Little or no medium. Acute OK, fairly precise, but somewhat better.

If it again, I would not rather save a little for a system of better quality. However, this is 600 LUCAS ideal for parties or baloche students.