The first two panes allow you to control button functions and what profiles are loaded onto the mouse.
The three following panes are much more interesting. Here you can adjust everything from lift-off distance to various acceleration and angle snapping settings. Color control, which is new for the Sensei, seems well implemented and it is quite easy to switch between the ordinary colors. If you want a fully customized look, the RGB selector will be hard to control and the omission of a hex or simple RGB codes seems a bit odd.
You can even load a customized logo onto the back side LCD display. Last but not least there is a monitor program included which can run some simple statistics over your mouse use.