Update: Today I used it for the third time. I was using it to clean a very dirty rug and it was running great, then it just stopped. No surging, no warning just died. I tried to restart it but it wouldn't. I am letting it cool down and will re-try. if it doesn't start then I will take it apart to see what went wrong. I'll update this review depending on the outcome, but for now I have deducted a star. ----- Another update. I figured it out. The on/off switch is loose and vibrated to the off position. that explains why it just died as if you'd turned off the switch. I'll see if I can't tighten it up a little and if I can't then a three pack of replacement engine switches is $7 on Amazon. I'm leaving it at 4 stars because they should use better quality parts. A loose engine switch is not acceptable on a brand new $300 machine. Otherwise, when it is running, it is the best pressure washer I have ever had. My business partner bought a 3,400 PSI DeWalt pressure washer from Costco for $350 that is as satisfying to use, but its switch was good out of the box. Is a perfect switch worth an extra $50? That's the kind of question you have to ask yourself before buying a Vevor pressure washier on Amazon. ----- Original Review... Seems solid. I got it yesterday and assembled it. This morning I went to fill it with oil and it seems to have already been filled with oil, because I ran oil all over my driveway. I added a quick-connect to the hose/wand connection and removed the wand as I turned on the water. I like a quick-connect on the wand end of the hose so that I can remove the wand while I coil up the hose. Otherwise the wand flops around on the ground as the hose twists. It also makes it easy to purge air, or water from the system. I have another little device I made to connect to the water input. It chucks into my air compressor and lets me purge water from the system, which prevents the pump from being damaged in a freeze. Once the system was full of water, I turned off the