I purchased the 12 inch Box Extractor in October, 2011, and it has been a excellent carpet cleaning tool. The ease of cleaning carpet compared to the standard drag wand is night and day in comparison. I'm less fatigued; it allows me to work faster without losing quality in my work. The ability to see what you are extracting through the clear window on top of the wand was an excellent idea by EDIC. The only problems I've had have been from normal use such as the belt that is attached to the brush which I replaced after 3 years of service. I also had to replace the handle after 3 years of service. I highly recommend this product.