I just bought this pressure washer (my first), so I don't have a lot of experience. However, assembly was relatively simple and everything seems well designed and well made. Surprisingly, it actually came with a detailed paper user manual and assembly guide (like the old days before minimal IKEA diagrams). And it's written in solid English; not a rough translation. I have minor quibbles about some part naming (inlet vs. outlet), but that's about it.