First, manufacturing is serious and well finished: thick aluminum alloy plate and finely crafted arms in aluminum tube and adjustable plastic joints (probably the weakest point of the product); I guess even when a fall, especially with outstretched arms, would be fatal to this unit, as other models of this type, moreover, we must handle them without brutality. It weighs only 1,580 kg, not 2.2 kg as shown everywhere (shopping sites, packaging, instructions), I checked several times and compared with a bottle of water 1.5 liter (same weight) to make sure that my balance was not lying. The settings are very numerous, each joint can be adjusted by angular pitch of 15 °. I found my bearings quickly to hold a laptop or a book while lying down: a simple Z with the top bar raised (= tray - or 90 ° - 100 °), the next hinge -45 ° (angle relative to the bottom of Z), and the last at 0 °, the third arm being unused. Small adjustment required: the lower plateau forms a retaining spoiler which fits under the bottom edge of the laptop, masking lights and a part of the click-pad; so embarrassing, this requires to insert a wooden ruler, rubber or plastic to slightly raise the laptop. In summary, I hesitated with competing models (including ventilated that I consider unnecessary and potentially noisy), and I in no way regret this purchase, good price / quality ratio (Notice to validate well in time course)
