Very happy overall, recommended solution to improve posture. With the laptop holder on 2nd arm, it also clears up space on the desk, even when using wireless keyboard & mouse. Did self-install, instructions are clear and should not be an issue if one has done IKEA type of self-assembly before. Used the VESA adaptor kit as the monitor could not be mounted directly on the arm. This took a bit of patience, but monitor is held securely in place. If something sticks out at the back of the monitor that blocks sliding it onto the arm vertically, note it can also slide on side-ways (horizontally) and the thumb-screw holds the monitor in place.
Dual Arm with Laptop Holder = Better posture & reclaiming desktop space