I have these fans now almost six months in use. On the positive side to give out that the notebook, thus standing there completely on the fan has a good grip. The fan is well made, there are no sharp edges or something of the same. The two controls for the ventilation (either only the large fan in the center or all) seem at first glance very good. But that's it unfortunately already. The fan is relatively noisy compared to those I had before. This point has personally not bothered me, because I usually wear headphones to listen to music. Knowing about these are not, however, the sounds quite pushy.
In addition, the fan cools not very strong. At the lowest setting it is not usable, only if all Ventilatorren run can ever find a cooling. Down, however the part cools wonderful if you have the notebook, including fan on the lap has one nice and cool it in summer.
Overall, I would advise people with a fast running hot Notbook here from buying. For normal use, however, it is of good use. For the price it's ok.
