Excellent! I could never go back to a normal mouse after using this trackball. Several people at work have bought them after trying mine and are also well & truly converted! Build quality is superb and delivery from Novatech was super-fast, as always.

I have fairly large hands and do not have a carpel tunnel situation but wanted to try something new. The trackball fits my hand well and, though, it takes a while to get use to using, it's pretty fun!

A well-rounded trackball for laptop and desktop users alike.

I've used Logitech's trackball mice for over a decade. I have 3 of their old ones called the Logitech T-RA18. These were superior mice and only GOD knows why Logitech discontinued them! I have now bought the M570 for a lot of money but I'm so disappointed I could cry.

I have been using this Trackball for years. I have one for my laptop, my desktops at home and work. I find it very ergonomic and natural to use. It took a day to get used to not moving the unit like a mouse, but now it is perfect.

A must-have for people who have difficulty in finding the space for a normal mouse. Extremely easy to set up and use. Works just as well as a mouse.

I have been using a usb wired versions of this trackball for a number of years. I bought this as a replacement and there are some issues. After about an hour the mouse motion becomes jittery with a short delay.

I have been using a usb wired versions of this trackball for a number of years. I bought this as a replacement and there are some issues. After about an hour the mouse motion becomes jittery with a short delay.

Mouse-like really feel. Wireless connection has been flawless. The storage compartment inside the unit is a wonderful concept. Very comfy. Quite nit-picky factor. The edges are so rounded that I have a challenging time choosing it up when I want to move it off my desk.Really, it's flawless.

This is the best Trackball mouse on the market for both PC and Mac