i had all version of the razer naga from the first to the most recent one, because they all broke down in less than a year. what made me switch is their hideous sensors.
went for the scimitar pro and while the sensor is even at the level of competitive fps, it's shape is a little bit less comfortable than the naga. nevertheless i have not noticed any problems with it within 2 months.
because of the better shape and the then improved sensor i still will try the naga trinity.