Basically, it can not be much to add to the existing reviews - solid keyboard, which provide inward curved keys for an extremely comfortable typing and listen to a lot of high quality, as the Apple Keyboard. Switching works fine, but what brings me to the only gripe with the keyboard: The F-keys. Although switching is an important part of the keyboard that for but three keys are assigned and thus the whole, usual order is messed up, I do not understand. Especially as the keys for skip tracks and fall away completely, there is only one pause button! It makes sense in my opinion would have been to, to let the F-keys untouched and + to change the three compounds by FN 1-3. Remedy gives the BetterTouchTool the simplified my life for years, one is in the Logitech settings the F keys to (standard F1-13, special functions with FN) can be assigned the key. Should it even be a program that requires the keys, you can take in BTT the settings for a program out. I, however, have to press keys that do something other than printed bothers me as a freak order something, or that I, unless I myself procure Remedy me at around 100 on my back / forward jump to dispense keys. That's why only 4 stars, the rest can not be faulted.