Bests & Worsts Reviews from Amazon

It's a good option for people with carpal tunnel such as myself and looking for a more ergonomic option. If it had a better angle out-of-the-box I'd give it 5 stars, however with a little propping it can be perfect, see below. Tips: 1. To make it 10x more ergonomic, place a wedge with a 30 degree incline under it to make it the most natural wrist angle and keep you from resting any weight on the nerves in your wrist. Experiment with different angles to find the best for you personally. I trimmed a chunk of stiff foam from some laptop packaging material, see the attached photos. This has been a HUGE benefit for my wrists and in combination with other ergonomic tweaks to my setup and regular stretching and soft tissue work has left me pain-free for some time now. 2. You'll need to clean the dust and lint from the rollers and optical sensor under the ball once a week, it takes seconds but will keep the trackball nice and responsive.