I own the device now 2 days and use it with a 15 'laptop, which is unfortunately designed very unfavorable and even in old 3D applications such as games extremely overheated (up to about 105 ° C). I have no miracles hopes of the device, only a little more time maybe up my laptop crashes again, but I was still very pleasantly surprised, especially with air discharge, so that the hot air is sucked, can my laptop now, even with full load no more heat than 70-75 ° C. The problem is that the recesses of the cover, unfortunately, are too sparse to allow an effective cooling performance even with the cover attached .. This could be a problem for other users to be. If one removes the cover, or appends a provisional cover with more recesses in its place, so the cooling performance is really enormous. That should not be the problem if you work only at home or even a long time in the same room with the machine, so a cover mounted in 1 minute .. The problem, the unit had a strong odor during operation, as some claim reviews, I can not confirm. Perhaps this problem has been fixed by the manufacturer so subsequently. Fans are relatively quiet, one can expect. What I've also read the switch was difficult to reach because it is mounted on the back, I find a little exaggerated. The power switch is located behind the outside, man must therefore make no decency to reach him .. All in all, I am fully satisfied, only the price is significantly higher than similar products, but that is justified here far-reaching.