Summary: Terrific. Infinitely better than the mouse that you have to push and pull all over your desk. This can stay in one spot and you just keep your palm on the big red marble. Every now and then, give a wipe with Windex. I think this has spared me from carpel tunnel.
Summary: Had to buy a replacement after I lost the ball from the original. It's comfortable to use. I find that it's much easier to do CAD drawings using this than with a mouse. I've used many trackballs over the years, including the Kensington "Orbit" and "Turbomouse" models, but this one is my favorite.
Summary: I've been using the Trackman for over 16 years. Best marble mouse in the world. They do wear out eventually. This is my fourth one, and one of the previous ones only had to be replaced because of misuse and abuse by grandchild. I use mine at least 12 hours a day, 7 days a week. It *seems* like Logitech is going to discontinue this model and it is the only one that allows easy finger control instead of thumb. Tired of moving your hand to move your cursor?
Summary: I had used Logitech track balls in the past and though this one might work. Cliking both buttons for scrolling was too much of a hassle. I chose a Logitech wireless Performance mouse MX instead.
Summary: I ended up returning the Trackman because it didn't meet my expectations and I didn't like it as much as my mouse. To be fair, this is the first time I had really used a trackball so my opinion might not be the most reliable for this product. I could use it and navigate with it but I could not foresee it ever being as quick or smooth as a mouse.
Summary: This is a great mouse if you have arthritis, but still want to or need to be on the computer. Your arm and wrist doesn't move much. It took a while to get used to, but is well worth it. I won't go back to a regular mouse, unless the fate of the world relies on it; this is the second one I've had now. The backward and forward buttons are an added bonus.
Summary: Ordered two of these as they are harder to find. Loved my old one like this, it lasted 9 years and just wore out. Plugged in the first new one and it was great, but the left button quit springing back after you press it at ten weeks. Too late for full refund and with shipping charges too.......Now using the second one. But I really love the design, I have carpal tunnel syndrome and this doesn't cause as much numbness as a regular mouse.
great idea, but small flaws including scrolling issues
mrkenlewis "ken", Amazon
16 July 2013
Summary: I purchased three similar products from Amazon simultaneously and received them today: Kensington Expert Mouse Optical USB Trackball for PC or Mac 64325 Logitech Trackman Marble Mouse Kensington K72337US Orbit Trackball with Scroll Ring for PC or Mac This is for a Mac. My large hands and my wife's small hands explored using all three devices. Our feedback on these products is in relationship to the other ones. -The Kensington "Expert" Mouse was too big and clumsy.
Summary: I think that massive positive reviews of this product is a result of ignorance of masses. I have used computers for more than 20 years and most of this time I used trackballs. I am used to scroll wheel on a mouse or trackball therefore its absence in this product makes it barely usable.