Variable speed fan, very quiet (except at highest speed setting) very good air flow, very well built. The lighting is tres cool. USB 3.0 hub built in is a very nice feature. Cord handlers on the sides. Big enough for the biggest laptop.
Although the unit requires a power cord, a seperate USB 3.0 hub would need power anyway so at least it is all contained.
Weaknesses:
A teeny bit too big for the laptop bag.
Summary:
Awewome, a must have for gaming/high powered laptops
Doesn't move very much air despite the large, fast fans
Very expensive for such a lack of awesomeness
Summary:
I expected more from a cooling mat that was aimed at gaming. Although the fans are large and fast, there is not as much airflow as I expected. The dead zones right above the bearings are huge, allowing a place for no air to go and heat to build up.