A bit late to this party to put it mildly, however, I thought I would share my thoughts on this mouse as I've used it for a while now.
Actually this is my 2nd mouse. I had to return my first due to scroll wheel issues, which roccat said it sounded like a defective sensor.
So far this 2nd one's wheel issues haven't surfaced.
Another issue I had was when I turned on my PC the other day, the mouse erased itself. All my custom profiles, dpi settings, everything gone. It was by chance I made a backup of the profiles the night before and restored it. But still, worrying.
Another problem is that the easyshift, can no be bound to certain keys.
I know its just me being picky, but I wanted it to be the scroll wheel right movement. Only main buttons can be easyshift. Not sure why, what difference does it make?
I love the mouse, don't get me wrong and I upgraded from a razer imperator to this.
I'm so tired and bored of paying out loads of money for razer products which aren't that great. I'm typing this on a razer blackwidow ultimate keyboard, and it keeps doing double S or L. I've spent about 15 minutes typing this, removing the double letters. Oh, and punched it twice.