I bought this chill mat for my daughter after overheating caused her laptop to continually cut out and left me with a £100 repair bill. Having established that the main cause of overheating (for this model - HP G60) was using the laptop on your lap (maybe a small design fault here!) or other soft surface causing the air vents to get blocked, it was clear we needed something to maintain the circulation of air around the vents. After looking at the various types of chill mat available, I decided it was a minefield to interfere with the intended air flow by introducing additional fans, and this is the reason I have rated this product 4 rather than 5 star - it really doesn't need the fans, it does the job perfectly well just by raising the base of the laptop and maintaining the air circulation whatever surface it is being used on. The top surface of the chill mat grips the laptop nicely so it doesn't slide off, the base and edges are soft and comfy, and the laptop now runs at a much cooler temperature. My daughter says it is very comfortable and uses it all the time which is half the battle - even the best mat is no good if it doesn't get used. All in all, I'm very happy with this product.