looks good, but not more

My Acer 7750G was always extremely hot during processor-heavy programs. So I thought "Get but a Notebook Cooler."
After a while I came across this one, the reviews were pretty good and the product made the internet a good impression.
When he arrived with me and I built it saw it then but otherwise on.
Although the product description says explicitly that the product for 17 inch laptops is suited my laptop has a few centimeters above stood on either side when I have placed it in the middle. A 15 incher is brought probably a good mood, but for larger caliber this is here definitely too small. The cooling performance was not convincing me. The processor temperature dropped only slightly, occasionally absolutely no difference was noticeable, although the Cool was on full blast.
After all, he was extremely quiet even at full power and made some visually ago.
Conclusion: For smaller notebook certainly makes sense for 17 Zoller unsuitable.