Easy to get a good grip, with either hand. Solid and precise build and feel.
You can change lighting options,macros and button defaults and CPI steps to cycle through in the Steel series Software,but i really do not like the software and uninstalled it as the Rival 100 works fine without it. The Number of buttons are 6 but i use this mouse for cad and website design .
In terms of buttons, they feel solid.Side buttons are good too and Wheel click is smooth; Rival 100 is quite sturdy; Even the side grips have a high quality feeling to them; The Rival 100 works quite well set on 500 CPI I could also recommend use at 1000 CPI ,but none higher, which i wouldnt use...
Software; i had no use for; especially since i do not play the default games that is included in their software settings.So no way i am going to enable another start up item