Most of the other reviews are right on. On the Plus side, It puts the dust in holes up about 24' high. It has a good pump. On the negative side, a little dust leaks out. The unit can only be used about 30 to maybe 35 degrees off vertical when all the poles are used other wise it will break. Last it would be helpful to have an additional right angle nozzle.
The stick is wobbly when you make all the attachments. One statement the other reviews did not discuss is a small sponge that needs to be placed in the top piece which keeps all the powder in the canister. It takes two people to work the piece because it is heavy. On the positive side. It stopped many carpenter bees but I had to do this twice because they came back four days later.