Cons: They break after a couple of months. If you play games with this mouse expect the left mouse click to wear out and eventually turn your single click into a double click. I've been through 2 of these each had the same problem.
Excerpt: I really like the invisible optics that it uses. I can also use the mouse on nearly every surface, so, if I am sitting somewhere with my laptop and I do not have any surface close by to use, I can just use my leg, my arm, the arm of the chair I am sitting in, etc. I am really head over heels for my new mouse . I plan on getting the wireless keyboard after the first of the year and I hope that it works as well as the mouse does.
Excerpt: The unique thing I like about this mouse is that it has to wheels,and I can surf in both “x” and “y” axis,and I just love this feature,and it really helps me to easily navigate through files. It has many buttons,and all of them has separate functions,which is very useful,and the battery life is pretty good also. It is really fun doing work with this mouse.
Summary: If I had known that the setpoint software is not windows 8.1 compatible I might not have bought this mouse. It works OK as a basic mouse, but the additional features do not work. I bought use with my laptop when working on spreadsheets, but I do miss the additional scrolling features. Logitech are not very forthcoming with a date for a windows 8.1 update, always bought Logitech gear but may not in the future.
Summary: The LS1 1600 dpi laser mouse by Logitech is presented inside an extremely easy to open package with a manual instructions. The grip is very comfortable in both hands, the aspect is something between a laptop compact solution and a desktop one. I've tested on a Mac Book Pro (mid 2010) with Lion 10.7.5, it's completely "plug and play" and it shows a very simple control panel where you can adjust the sensitiveness and the buttons adaptation for left/right hand users.