Doesn't wear well
I may have given this 4 stars before; this is a revised version. After only a month or two it is too noisy. I will probably end up buying a different brand and throwing this away. I may be a rougher user than most, but I don't see what I could have done to create this grindy noise. I frequently fall asleep with my laptop sitting on my bed and this noise makes me nervous and would keep me from napping.

At first use, this seemed excellent. But I have changed my mind.

Cheap, but loud and inefficient
This is the worst thing I have ever bought.
There are 3 fans that seemed to be in the perfect position for my Toshiba Satellite, but it turns out that in less than a month, the fans start making weird, extremely loud noises one by one. It's not just a "bzzz" sound that normal fans make, but it's more disturbing, like something were stuck in the fans. At first I could turn it over and move it around a little to make the noise go away, but after a while I could do nothing to prevent it. The only solution I could find was to put a little piece of cardboard to stop the fans from moving..I just left one working, which is the one right underneath the battery. Since there's only 1 fan, heat dissipation is ineffective, and this fan has also started to make the same weird noise again. Once the last fan fails I am going to buy a better one, maybe more expensive, but definitely more worth the money than this one. This fan doesn't deserve a cent.

Very good
no noise, keeps my laptop cool, only dislike is the cheap-like plastic... other than that, very good product for the price...

About to order a second one
My girlfriend's laptop (macbook pro) was actually starting to crack the wood on the table that was underneath where she usually put it! After getting this, at least the problem has been greatly mitigated. The entire keyboard and wrist rest area is now cool to the touch, always. Worth the price.

I am about to order a second one for my work laptop (also a macbook pro, call me lucky!) which often runs very loud internal fans.

If you keep your computer busy, this is kind of a necessity (although it SHOULD NOT be!)

Love It... quiet and functional
I plugged the USB in and it was so quiet that I had to look to see if the fans were turning... yep, all three. The pad is thin and the three front LED green lights let me know that every thing is 10-4. My ACER 3680 runs about 50% cooler. I paid under $17 shipping included. Half of what other cooler fans go for. I got through Amazon from PC Universe - though PC Universe's shipping speed could be better, they are not the fastest horse in the race, I still got the box on last day that was promised. For the price, highly recommended.