I've used it just one time.
It's just awesome.
I tested a 700-watt Starway
and it's not comparable!!
Excellent value for money.
Tip: Place a moving head under it to raise the front side and spread the fog upwards.
Update after two months of use:
Good fog machine but the efficiency decreases with time. It doesn't have the quality of a Martin Magnum but it's enough for small locations. I lower my grade from 10 to 8 because of this.