Finally had one of these bad boys arrive from Ocuk. As always it arrived next day from OcUK on free delivery. Build instructions were nice and clear and it comes with a allen key/screwdriver to make life a little easier. From unpacking to building the chair took me about 20 minutes. The build was easy and with all parts fitting together as they should. A very solid chair which comes with adjustable armrest and lumbar and neck support. Really pleased with this chair. Pros Sturdy design. Plenty of adjustable features. Lumbar support. Quick build time. Cons. None that I can think of.