Summary: I bought this as an upgrade from my trusty Marble Mouse (which had been used for about 3 years). Feature-wise this mouse is very good, however it's not very good for gaming due to the lag and I'm not thrilled that it died after only a little over a year of regular use.
Pros: Solid layout, comfortable for my "average" sized hand, good assortment of features
Cons: Somewhat laggy, and very noticable when gaming (compared to my wired marble mouse). The left-click button also died after a little over a year of use at work.
Summary: More than slightly bummed about it giving up the ghost so fast. I can honestly say it's the first Logitech device of any type to actually fail, so I'm not belittling the company. I just got a dud on this one. Shame really, now I've got to wrestle my old Trackman Marble from my kids.
Pros: While it worked, it worked well
Cons: After one month of use, it stopped working. Changed batteries, reset the device, swapped USB ports for the receiver - no change. Just wouldn't reconnect.
Summary: Price is high for a unit that only lasts about 15 months, but I'm glad they're still available. If it wasn't so nice when it's working, I would try to find an alternative.
Pros: The best pointing device I have ever used. Multiple customizable functions within easy reach. Great for a crowded desk space where mouse movement would be restricted, or for a standup workstation where no desk is available.
Cons: Durability is a real issue with this unit. After about a year of heavy use, the ball will feel "scratchy" as the support points wear down. Cleaning the ball does nothing for this condition. Eventually, the primary thumb button will fail until the unit is useless. I can take apart and fix just abo...
Summary: Debating whether to buy a 4th, or go back to a wired Kennsington. I LOVED the way this mouse worked in XP, and the design is second to none....BUT do I really want to buy a $50 mouse every year or so? Do I really want to use crippled/buggy software to get it to work?
Pros: Excellent design. One of the very few cordless trackballs offered today. Great battery life.
Cons: Here we go... durability and support with this mouse is CRUD. I have just "worn out" my third Optical Trackman in 4 yrs. I seem to get 1 - 1-1/2 yrs before buttons start taking harder "mashing" to work, and cursor is unresponsive. Thorough cleaning and fresh batteries will not help, when it goes ...
Summary: It replaced the other Logitech trackman. I liked the older (ball on the left) more, but I like the track ball location on this one better, so I'm going to buy another soon. As I said above -- there is nothing better in the market that I can find...
Pros: A good size trackball. Lots of buttons & features.
Cons: After a year of extensive use, the main button is giving out. It will only work sometimes, and needs a lot of pressure to perform. Range was never as good as it should be -- the device is sitting about 4 feet from the transmitter with direct line of sight -- if I move it one foot further, it does...
Summary: All in all, if a scroll wheel and wireless is important to you this will get you far. If wireless doesn't matter and you can do without a scroll wheel then I recommend that Trackman Marble instead.
Pros: Stationary mouse. All the important functions of a mouse, a scroll wheel and a few extra buttons. Back and and forward buttons great for easy browsing. Weight keeps it from moving around much. Easy to set up.
Cons: Not as comfortable as a standard mouse. The way the thumb lays on the left button is awkward and to top it off the left button is stiffer than most mouse buttons making it an uncomfortable affair for the thumb. I've never had so much trouble double and triple clicking. The trackball itself is slo...
Summary: For the short time it worked for me it was pretty solid. Personally I would spend a little more money and get a higher quality mouse. I don't blame Logitech as _ _ it happens from time to time. I ordered all Logitech replacements!
Pros: While it was working it worked well. Its a Logitech! I really like the Logitech keyboards and mice, don't use anything else.
Cons: Stopped working on my Win 7 machine, if I re-booted the machine a couple times I could get it to work for a short time, then even that didn't bring it to life.