Summary: Saw a con that said it has no scroll--this is easily seen in the picture, no need to list this as a con, although I do miss the scroll. Also saw several cons that mention the third and fourth smaller buttons are hard to get to. This is bogus.
Pros: This really is a great mouse! I used this for many years, even for gaming! I finally switched to a gaming mouse for more buttons and a scroll wheel, but I often miss my trackball for saving space on my desk. This mouse operates smoothly, is easy to clean, and functions well all around. I highly r...
Cons: None really so long as you understand exactly what you are buying.
Summary: I'm a big fan of trackball mice and have owned a few different models and this one is a very solid option if you don't want to dish out a lot of money for the high end ones.
Pros: I have been using this mouse for more then 4 years and it is still very responsive. Usually the ball on the mouse would not roll smoothly after as much use as I have put on this one. It's long design fits my hand very well. Good support for the inside of my palm
Cons: Limited Features and the two secondary buttons are not placed well.
Summary: I bought one of these earlier mice back in 2000 and have been using it ever since including right now. These early ones where actually made in the time when Windows 95 was the only operating system available.
Summary: I have a newer model marble mouse but my teenage son was a bit rough with one of the buttons and it double clicks for every single click. This was a decent replacement for a product that new is still running at $30.
Excerpt: I really like this "mouse"...it's large and comfortable in your hand. I had to get use to it as you control it with only your fingers. Very easy to use and moves well and accurately! No complaints!!
Summary: Allowed me to transition to a stand up desk. Used to use a keyboard touchpad. Now I rely on the Marble. If it gets slow or sticky, I pop it out and rub it on my shirt and then when I pop it back in, it glides real smooth. Its got lots of features but I just use the basics.
Excerpt: I have always preferred a trackball to a mouse. I have used other trackball products, but I prefer the Logitech TrackMan Marble Mouse to other trackball products. I find the ambidextrous, ergonomic features a definite plus.