When I purchased my laptop, I knew the integrated touch pad wouldn't suffice. I needed a quality mouse that I could easily take on the go, but one that would hold up to the higher end desktop mice. It has many buttons that can be customized with the included drivers, eight to be exact (not including the right and left click). This is so clutch for me, because I can use it like a remote across the room to control volume and switch tracks of my music. The scroll wheel can also be switched from a "racheted" wheel to a "free spin" wheel with the switch on the bottom side of the mouse. I didn't think that this would come in use very much, but I enjoy using the "free spin" mode a lot when reading longer webpages. The design is very sleek and fits the [right] hand very well. I also have relatively large hands (think xl batting gloves) and many notebook mice can really put a hurting on my hands after longer periods of use; however, the vx is a bit larger than other mice in its class while still being easily put in a bag pocket (and still much smaller than it's mx revolution desktop counterpart). The buttons themself are very durable as well. I have dropped this mouse more than several times from about three to four feet in the four months I have owned it and have not experienced any problems with it. I have told everyone thinking about buying a mouse (whether it's for a notebook or desktop) how much I have enjoying using it and how lost I was without it when i forgot to bring it on a weekend trip.