I have a 18.4 "Acer laptop and it was the only stand / fan in this size. My laptop fits on it, even if the pages per 1cm above such things, but this is not disturbing. The fans do not hear you, but I think Vielbringen he does nothing. I am still very happy because I'm switching from PC users for laptop users and with you the amount of the display so like better when working. From the cooling performance here but I would recommending Hama fits most under a 15 "laptop since mine but is very large, I have no choice. If the stand / fan but still recommended because it keeps the ambient temperature is low and is thus also confidently in summer can work and creates a angemehme position of the laptop. It is very well made and very sturdy. What I but the folding holder / stopper are also miss so not sliding down the laptop. There is a rubber strip present, the laptop also does not slip, but it would give me a secure feeling. In the Hama stand / cooler a turntable underneath so that one easily can turn the laptop that I am missing here a little. One should choose a good position because move is then not so easy.
But all in all with all the + and - points I am satisfied with the device. But if there would be of the type such as a large part of Hama, I would have decided to do it.