Logitech M570 Wireless Trackball Mouse – Ergonomic Design with Sculpted Right-Hand Shape, Compatible with Apple Mac / Microsoft, USB Unifying Receiver, Dark Gray

Customers find this trackball mouse to be a great Logitech product that works reliably and is ergonomically perfect, fitting comfortably in hand and helping with wrist pain. They appreciate its ease of use, quick learning curve, and consider it good value for money. The smooth movement aspect receives mixed feedback - while some say the ball moves effortlessly, others report issues with the cursor not moving properly.