Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Works as a USB Hub, not much else
Review: As a powered hub this works well. I can't speak to its cooling power because I couldn't get my 17" laptop to sit on it and not move. There are only two rubber feet on the top surface, at the back, so a large laptop will not rest securely on it and will slide all over at the front. After trying another cooler that was too small for a large notebook, I bought this one specifically because it said it worked with 17" laptops. Not mine.
