Ease of use 2 2

This high-pressure cleaner works very correctly. ordered with a water filter to use with well water, it effectively cleans self-locking paving stones are never cleaned. The result is convincing with great ease of use. The only problem is the administrative processing my order which does not allow to have a bill in due form to take advantage of a promotion Karcher. We have to wait 5-7 days for a duplicate invoice without anyone's access to the original document. So to this day I have not been able to provide a document proving my Karcher purchase from Amazon for a free brush.