Keybinding menu is a freaking mess. Can't rebind the mouse buttons at all, lose the mouse cursor half the time and have to back out, or use the keyboard. Joystick rebinds are just hosed, such as using gamepad buttons R Button and L Button when rebinding the throttle on my Force 3d Pro. Clicking Reset Bindings resets everything (ie: Video settings) in the menu's back to default.
Forced myself to use default controls for 30min...the gameplay is awesome. Game looks and runs fantastic on my aging system (basically met Beta minimum requirements) and it defaulted to just about everything maxed at 1920x1080, so that's impressive.
Now, they have until beta ends to fix the button and joystick mapping.