I found the mouse and the peripherals to be highly aesthetically pleasing. In addition the weight of the mouse is perfect: heavy enough to provide just the right amount of kinetic resistance. The batteries and lights are not only cool looking, they do a great job of providing visual feedback as to the remaining charge.
However, the middle scroll button is such a hindrance that it cancels out all of the positive things about this mouse. I really wanted this to work and figured that there must be some proprietary method of operation. I worked... er...struggled with this mouse for the better part of a work day before giving up. I tried varying amounts of pressure as well as varying amounts of surface area of my finger on the sensor. The scroll simply does *not* work. As a matter of fact, it works against you. On the uncommon occasions it does detect that you are attempting to scroll, more often than not, the scroll speed will be excruciatingly slow (or fast!), that is if you can get past the fact that it quite often will scroll in the wrong direction.
Sorry Obsidian, I really wanted to love this mouse but scrolling is an extremely important part of my day to day. It sure is a pretty mouse though. Better luck next time.