Excerpt: I have used Kensington track balls for about 15 or more years as they allow me to draw straight lines easily when plotting in Autocad. I design and modify passenger vessels and so precision is very important to me when plotting and the horizontal ball doesn't require reorientation of the reflexes like the vertical balls do. Worse yet, most of the others are just at an angle and not square to the world.
Just not the smooth operation I am use to. Very disappointed!
Amazon Customer, Amazon
10 October 2014
Summary: I am a long time track ball user and normally use the Logitech brand. I strongly prefer trackballs to the traditional mouse. I purchased the Kensington Orbit to use with my Surface 2. It connected with no problem. But the performance is not what I hoped for. I've had a hard time getting hitting targets on the screen, it jumps around a bit. Several times I actually used the track pad on my keyboard to get the curser where I wanted it to go.
For some people it may be OK, but for what I do it doesn't have a smooth scrolling action.
Mark Liquorman, Amazon
6 October 2014
Summary: It basically is OK, and for most people it may not be a problem. Good size and feel. However, the trackball itself has some initial resistance when you make a movement. This makes for a jumpy start every time you use it. Not a problem if you are moving around the screen a lot. But I'm a developer and I'm often making small movements as I grab an object and drag it to position it exactly where I want it.
Unuseable ~ Cursor movement abruptly starts and stops and companion software "TrackBallWorks" errors on install.
Kingdom of Geek, Amazon
17 September 2014
Summary: Mouse freezes and abruptly stops and starts while moving the cursor. It is as if the trackball randomly starts and stops working while you are using it. Tried to install the companion software "TrackBallWorks" from Kensington's website but it errors on install with the message "Cannot install file 'C:\Program Files (x86)Kensington\TrackBallWorks\Drivers\amd64\tbwkern.inf'". Kensington's hardware is so poorly constructed that it abruptly works and doesn't work.
Summary: Almost a great solution to make the trackball more portable. I've been using trackballs since 1998 and have probably owned every version up until about 2004. At the time, I owned a Kensington Expert Mouse and a Logitech Marble Mouse. I've since lost track of the Kensington over several moves and have exclusively been using the Logitech for at least 5 years now. I am now on the go a lot for my work and had been carrying around my marble mouse in my work bag.
Excerpt: The old Logitech trackball was giving me fits since upgrading to Mt. Lion and was as bad or worse with the Maverick operating system. I made sure the trackball had the latest firmware and was clean but it still had trouble selecting, "dragging and dropping" and scrolling so I bought the Kensington trackball. It worked perfectly right away. (I had downloaded the driver first.
Pros: Easy To Set Up, Good Ergonomics, Never Freezes
Summary: I never buy any other brand...got this for my lap top..as I have a great digital optical mouse for the desktop....compact, easy to use...easy storage for the usb chip so you don't loose it.....if you use lithium AA's will last a while as long as you turn it off when not in use....
Cons: Left and right button placement is awkward. When you are moving the mouse to change the angle of your palm, you can push the buttons unintentionally. Also, the touch scroll takes some getting used to. A physical button or slide would give a better tactile feel to the scroll options.