First things first, I have a HP dv9000 17" screen laptop. A large laptop by anyone's standards.
I chose this seller as the product is a more subtle colour scheme rather than the gaudy blue of similar sellers.
I have an issue with my laptop as the underside gets very warm when using the graphics card for any period of time, so the riser was the ideal solution. I researched the products available and found that this to be a reasonable price.
I was concerned by some reviews who suggested that this would not support my 17" laptop, fair enough it is made for a smaller laptop, however it suits for what I need. It holds my laptop safely, but there is an overhang to the sides and rear. The weight of the screen at the rear puts the laptop a little off balance, but it is stable.
As said in the title, ideal for a 15" screen laptop or less... but suits my 17" for what i need it for.
I'm happy with my purchase.