Summary: I have bought a couple of these because it is the most cost effective and comfortable trackball, and it uses the tiny receiver that also works with the wireless Logitech keyboard. That said, the reason I've bought more than one is the the left button fails too soon.
Great mouse, but on my 3rd one. Next one will be something else.
15 May 2015
Summary: I've been using trackballs of various vendors for almost 20 years. I like Logitech and prefer their brand, but this mouse seems to have chronic failure issues. 66.6% failure rate for me so far. I will be looking at a different mouse in the future.
Pros: This mouse is fantastic when it works. Smooth scrolling. Responsive buttons and wheel.
Cons: Expensive mouse because it doesn't last very long. I don't mind paying premium for quality, but lifespan is terrible from my experience. The first one lasted about 5 months before the cursor started jumping all over and scrolling had a mind of it's own. The second one just stopped working in abou...
Excerpt: Not much choice from Staples as far as wireless trackballs goes. This one replaced the same model we had that started randomly not working after a year. We tried all the troubleshooting & nothing helped so had to order a new one.
Excerpt: I use the product at my home computer. It fits well in the hand. The track ball is really loose making it hard to control. Tried the website to get the download. The website is extremely hard to navigate. Not happy!
Summary: I've purchased numerous Logitech products over the years, including keyboards, mice, trackballs, and even the excellent Squeezebox classic music player. The designs are still quite good, especially the ergonomics of this trackball, but the build quality has clearly suffered from cost cutting...
Excerpt: Purchased because of shoulder pain due to excessive use of conventional mouse. Had one years ago that wasn't quite so touchy and it's been a learning curve to get used to "cruising" the mouse with my thumb.
Excerpt: Not as comfortable to use as the Logitech Trackball (especially for small hands), which makes left clicking an awkward proposition. In order to click on the right, one has to lift the entire hand as opposed to just reaching across. This can result in a waste of time and result in errors.
Summary: It's such a shame that trackball users are so neglected in the computer market.
Pros: It offers the same superior comfort as the rest of the trackman marble predecessors. The unifying transmitter is excellent at controlling my keyboard and trackball with no noticeable latency. The battery life is excellent even using it 9 to 10 hours a day it lasts for months. I've used Logitech t...
Cons: The ball suffers from a large amount stiction between the ball and it's rests. I thought in time it would pass after a break in period as i saw this in a previous model. I use it for gaming a lot and it has gotten so bad that i'm going to be forced to go to using a mouse. (not a Logitech) yes i c...
Summary: This isn't worth $60 anymore, not when the buttons wear out so quickly. I wish I could find a decent competing product, because I'd switch to it in a heartbeat. I'm sad that I can't find a good thumb-trackball these days.
Pros: The design is solid. The reprogramming of buttons works flawlessly, the software (on Windows) isn't constantly begging for attention. I've owned some form of this mouse for 15 years, starting with the corded Trackman Marble.
Cons: It's a little small for my hand. The killer, though, is the cheap microswitches in the main buttons, leading to sporadic loss of contact when you're trying to double-click or click-and-drag. Their production process and Q&A has really gone downhill.