product arrived very quickly, was as described. I'd read the other reviews on Amazon before buying, so knew that either most people were bad at putting things together when instructions were naff, or there was a potential lottery of screw sizes and a risk that the device would not assemble well and be useless. I found that the instructions were naff, but if you applied a little thought it was a doddle to put together and once assembled is very sturdy.
I already had another previous product and that one was starting to give out from heavy use, all the foam grips had split and it was becoming tricky to use. As it happens, this one will only fit in one doorway of my house due to the dimensions of it - rather than the spurious ones that are published on the Amazon product page, it would be good if they published a diagram that shows all of the dimensions. The width of it in the doorway, for pulling up etc, is fine for me. However, the width or depth of the bit that hands above the door, to where it comes through the door and rests either side of the door on the other side, is the bit that I did not know and would loved to have measured up beforehand - as I have really thick walls on all but one doorway.
As for usage, it creaks noisily when taking the full weight of an adult, as the rubber rubs on the door frame, but once settled in it is fine. I enjoy the better range of hand positions and can get a good workout out of it.