Things I see that need to be changed. I think the spacing between the roller and frame should be wider Clots of hair, Fuzz ect..Get stuck between roller and suction area. Also the placing of the sprayers ( seems to be on each outer area of roller) maybe make the machine base a bit wider behind roller...set roller more forward if possible. User's recommendation: I love this product! Would buy again. I have one recommendation for a change for the Bissell cross wave. Easy clean up. Does good job!