used it today in a three storey house, 100 foot hose length........ seperate ext lead so no issues, i was told there may be possible issues with it creating too much pwer for the body of the storm (it was meant as an upgrade for the pro apparently), but no issues there either. It definately made a difference nice increase in suction/airflow, carpets were very clean (but then they were before with the storm), but i think they were left even drier immediately after extraction. Felt very powerfull at the wand end and certainly made some noise! so, early days with this new toy, but i would say looking good so far.........