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.
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: Been using this "mouse" for over 4 years, had to replace it twice, though. The left button tends to stick after a year or so of use. Great mouse otherwise. Solid response - easy to clean - just lift ball out of socket and clean the accumulated hand-grime that everyone makes from the interior socket every once in a while. Simple and easy to get used to.
Summary: Essentially, I like the form of this mouse, especially with the buttons on the sides, as pictured. I have used it for over about two years in conjunction with a second, normal mouse. After years of programming, I have developed some pretty serious RSI. At first, it was just in my right hand, because that is what I used to mouse. Then, I switched to left-handed mousing and it bloomed in the left. Now, I mouse with both hands simultaneously.
Summary: Tried a thumb trackball, too hard to control with my thumb. Switched to this, much better control with fingers, but I scroll a lot, and the lack of a scroll wheel is not good. One of the buttons can be programmed for universal scroll, but that's pretty hit and miss. Going to keep shopping I guess.
Summary: I have been using these mice (mouses?) since 1999, maybe earlier. I do not like the two little buttons on the big ones, but they no longer make them without those...and even when told to do nothing, they still affect things.. my issue with these is the inability to take it apart...some kind of glue or snap prevents it from being taken apart..and in time the buttons fail due to dirt and start double clicking...and I have to chuck em out...
Summary: When I was looking for a replacement for my Trackman Wheel trackball for my laptop, I knew I wanted another trackball. Since they don't move around like a mouse, I don't need as much space to use it. As I move my latptop around and use it in smaller areas, this is very important. I was dissapointed to find that Logitech no longer made the Trackman Wheels and the cost of a replacement was prohibitively high.
Summary: I'm comfortable with a Marble Mouse, I just wish it were more reliable. This is my third (or maybe fourth) purchase, all for the same reason: The buttons cause multiple closures after a certain number of acuations. In otherwords, they bounce. A pretty low tech problem.
Summary: So I've used mice since I started using computers and decided to try a trackball and got used to it after about a week or 2. My experience is that it's just not very precise especially when trying to be precise! Small movements are what I mean. The ball feels sticky or bumpy whenever I'm moving it slowly. I also have to take out the ball to clean the "lasers" because it gets built up like a ball mouse and makes it hard to move the trackball.
Summary: Yeah, I thought I could get away without a scroll wheel, but it doesn't work out that way. This device works fine as a mouse if you're time traveling to 1995. Logitech does offer some button remapping options in their software driver but they're useless in practice.