Purchased to hold a 27lb monitor and it is sagging so much I am currently supporting a corner of the monitor to keep it level. The table clamp makes a solid impression. Assembling the stand is easy apart from the screws used to adjust the forward angle. People who find it slipping probably forgot to add lock washers. I would also say that it takes three hands to attach the monitor to the stand as the monitor tends to fall forward until you add at least one of the top retaining screws.
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