This arrived very, very promptly, which was great on the part of the seller.
As to the product - I've been using it since with my 15.6 inch laptop, and it seems to be working fairly well. It's very quiet, which is another plus point. I've given this product 5 stars because it's also a great price for what you get, and I've had no problems with it at all.
The only negatives involved in this product are 1) it's quite flimsy, which may be a problem if you plan on taking it with you somewhere, but it's not a problem for home use; and 2) if you're using your laptop on soft surfaces (I use mine on the bed which is why I need the extra cooling), the fans will stop as they will come into contact with the surface. I simply placed an A4 hardback notebook underneath to stop this happening.
Apart from that, great product, for a great price!