The placement of the "Before" and "Back" buttons on the side is a bit strange, because they are for my taste too far behind (as too far towards the wrist). This is particularly the "Back" not optimal to achieve key, but for the classic Internet navigation is just fine, once you get a little bit used to it.
Definitely positive the ceramic feet are emphasized. This slide quickly and virtually silently over my wooden desk. In a mouse pad, which restricts the freedom of movement but something I can therefore do without completely.
Also positive the cable falls on. This is covered with fabric. This makes it a bit more rigid - which in my experience is not noticeable in the use, but it will definitely contribute to the durability. Other (unfortunately well-known) manufacturers appear with their thin cables aware a vulnerability to install, so that the device does not hold too long. With this device, the cable would certainly not be a weak point.
Since I use a Linux operating system, unfortunately, does the software not to configure the programmable keys. But if you have programmed the key times in Windows, this setting is stored on the mouse works now also under Linux. The only problem is that you can program the shortcut keys Although including Meta-keys (Ctrl, Alt, Shift and "Windows" key), but this apparently - at least under Linux - not function. On Windows I have not tried it in detail.
