Love this mouse. I have been searching for an ambidextrous wireless trackball for a while and was hesitant to spend the money on the Kensington Expert Wireless trackball. There should have never been any fear. The button placement is perfect and the trackball glides effortlessly.

This trackball was awesome until I upgraded from XP to Vista 64 & then Win 7 64 bit. The driver/software is not compatible & they have no plans to make it compatible. It only works as a basic mouse under those systems, no programability. Under XP it was great with tons of options.

Function; Programability; Looks

Price; Mouseworks software not Vista/7/64bit compatible

This my 3rd trackball mouse. Our first trackball was on our 8100 Mac and it was great. This one is the best. I wished I had bought it for the I-Mac sooner. The scroll wheel really make this one worth it's price. Editing Word documents and Excel spreadsheets is a breeze.

I love this trackball. It is very comfortable to use. It is much faster using a trackball than it is a mouse. It is more precise than a mouse. So if you are using CAD or photo software this is the best type of pointing device. I highly recommend this trackball.

I was pleased with the trackball, as many of the people in the post production industry use it. I was very happy with Kensington supplying a wrist rest in the box. The motion of the ball is very smooth and highly accurate.

Easy To Clean; Ergonomic Layout; Smooth Movement

BUttons

Have used a trackball for about 12 years. I compare using a trackball vs a regular mouse to be like riding a no-speed vs a 20 speed bike. Wouldn't be without it. And you do get what you pay for. The last Kensington Expert Mouse I purchased (before this recent purchase) was in Jan 2000.

Yes, I would recommend this to a friend

Comfortable Design; Easy To Clean; Great Features; Highly Compatible; Quiet; Reliable Performance

I was so excited to see this trackball not only that it is wireless but also a new look, the red ball and black Matt color that it seems like something out of Star Trek, LOL. The Spinningwheel is not as smooth as my previous wired truck balls but I think that will just come with time and usage...

This trackball-style mouse is a credible alternative to the traditional mouse, using a large weighted ball.

The Kensington Expert Mouse Trackball is like no ordinary mouse . I got this mouse as a gift. However, I did a Google search and this mouse costs $119.99. I, personally, feel that this mouse is over priced. I had expected this to be roughly 60 dollars. This mouse is nowhere near what I had expected.