So some notes we have found by trial and error:
-It does not have a lap strap, so you need to rig up your own.
-The footrests come separately but intuitively easy to fit. They can be lengthened – loosen the bolt about 1cm the tap it back up the tube to loosen the expander bolt, then pull out the desired length and re tighten.
-Its not clear how to un fold the chair – but we find that you tip to one side and push down the vertical tubes next to the arms and the seat will widen.
-There is no click, or bracket to confirm its now at full width, but I think the person being in the chair makes sure it stays wide.
-To re-fold the chair grasp the front and back of the seat fabric. in the middle, and pull up – the chair will narrow for storage.
-There is an obvious slowing down break lever, but not an obvious parking break – we found that the parking break is achieved though pushing the break lever down, instead of pulling up.
-The arms are removable, by pushing the button on the front, then pulling up, but we have not yet found any way of adjusting height etc.
-We feel that most serious users would want a cushion on the seat fabric – these are readily available, but while some of the available cushions have a Velcro backing, unfortunately the chair doesn’t, so no way to stop slippage.
So you need to find your own way around it, but still appears to be a very good strong chair.