I love how much airflow I get out of this thing, especially after I dumped the 3x 4in inlet and am now piping air through 7" ducting. The whole unit came together easily. My only problems with the unit is the placement of the switch, and the inlet. I would like the outlet at the end of the whole cart, rather than in the middle of the long side. The switch is mounted right on the motor, which means I have to bend down to turn on the unit. When I hooked hose straight to the inlet, I had to reach behind the unit to turn it on. If it was mounted on a plate above the wye of the outlet, it would improve it. Ideally the inlet would be on the end of the cart, as I say, because now I have to keep the whole unit about a foot away from the wall to make room for a 7" elbow.