Ranked in these QuestionsQuestion Ranking
Pro High quality build, very durable
This mouse is amazing quality for the price. The trackball is smooth and precise, and the mouse feels very well built/durable.
Pro Good battery life
Logitech promises a battery lifespan of 18 months off of a single AA battery.
Con Learning to use the thumb to control the trackball might take a while
Most trackballs are finger-operated, and learning a new to control the mouse might take some time.