I used it for two years and I had no worries. The only downside is the weight of the box which is quite high (37kg). It is a very powerful sound system and 600 watts are really present. With Powo anime easily 200 people there knowing that we are a group of 5 people so there's still other amps (bass, guitar and keyboard). Manufacturing (made in germany) is a guarantee of quality. I will ever be the choice.