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At first it seems like a good idea but it's way too big and not very mobile. It has a very limited range of movement, so you can't fold it away like you want to. The tightning screws on the joints need to be adjusted frequently and you need to grab the hex driver and the wrench together to adjust it each time, when It should be hand adjustable. I returned it and figured out that I can just lean my book against a pile of books instead. Also the bamboo board kept giving me splinters.
At first glance, this looks like it will be really sturdy and stand up to a lot, but while screwing the main standing mast onto the base, the through bolt connection immediately snapped without over tightening. I’m shocked that this piece isn’t welded through, as it’s a very silly design flaw that greatly weakens the connection. I’d imagine that even if you got the mast on right, the weight of anything you put on the arm could snap this weak connection.