We bought this to clean our deck, deck box, siding and sidewalk. It worked nicely and cleaned the deck & deck box. We haven’t done the siding or sidewalk yet, but based on the performance so far, we don’t expect any problems. Using it is pretty simple and straightforward. We did have to run our longer extension cord so we could plug it in to the GFCI outlet in our garage. It kept flipping the breaker when plugged into the power cord in our shed. The instructions do tell you not to use extension cords, but if you’re power washing farther from an outlet than the cord allows, you have to use an extension cord. It worked great when plugged into the GFCI. One other thing to mention is that we had to use compressed air to clean the nozzles the first time we used them. Don’t know if there was dust or metal shavings or what, but the nozzles didn’t work at first. We thought the washer didn’t work, then started trying things to diagnose the issue. Once we blew out the nozzles, the washer worked just fine.