The chair itself is as advertised, and worthy of five stars on it's own merits. However, the so-called \"User Manual\" is essentially useless, both for assembly and for usage. You pretty much have to figure it all out for yourself, which can of course be done, but in that case why even have one? There's just one little postage-stamp sized section near the end that has any written instructions at all, and the print is so small that I literally had to use a magnifying glass to read them, even with my glasses on. The rest is all just a series of numbered sketches. A few well-written comprehensive instructions would have helped immensely. I suspect someone was trying to save a few bucks on translation.