I bought this unit to clean the tops of large industrial heating boilers while standing on a ladder. The Ford Motor Company could not afford to buy me a back pack vacuum. I was impressed with the design and ease of use, however, it is not a heavy duty unit. I figure if it got me through this task that would be good enough. The vacuum is powerful. I liked the clear tank cover allowing you to see how full the tank is. The integrated bag and fine filter function exceptionally well. On the minus side, when stretching to far the shoulder strap broke. My fault. I was able to knot the strap in the frame and it still works well. I think I stepped on the cord while it was over the hose and somehow managed to pull the hose out of the fixture locating it to the top of the tank. My fault. I fixed it with duct tape. All in all a positive experience and review. Lets give it 8 stars out of 10.