Received this product much earlier than I expected it.. Needless to say, am extremely happy with the product.. Since I bought it, I don't think I've used my laptop without it..
***Update***.. After having used it for a year now, everyday, I find that the hard plastic top surface has gently curved upward. It reduces the ventilation space for the laptop, but I haven't yet experienced any overheating issues. It still remains my most favourite laptop accessory.. Am thinking of buying one for my dad who's just discovered the convenience of a 17inch laptop over a prehistoric desktop :-)