The brown Cherry keys are anyway a dream, this no longer needs to be said.
Actually, I love this keyboard, but there is a real problem with that: after only 6 months of use to break the cylinder individual keys with which they are placed on the brown desk. That does not happen now in the most hotly claimed keys, but _only_ with the ESC and F1-F12 keys.
I guess (!), That it is because I do not directly press these buttons from the top, as for example in WSAD, but just relative angle, which creates much more pressure forward. Since the keys are only ambitious caps on the switches, I have broken the first keys simply replaced with less frequently used ... do not use the F-keys, printing rollers. Even with the knowledge that I have to deal with these buttons carefully, to me are quite fast also "spare key" broken. Logitech is limited to an acknowledgment that the keyboard "defective" is, and I shall give them back.
I have no idea whether I really only caught a bad batch, or whether this is a general problem of the keyboard. As I quickly used spare and not again wanted to participate in the batch Roulette, the G710 + a G19 had to give way. It's also a good keyboard, but does not come ran to the G710 +.
The big advantage of the G710 +: you do not need to install software so that the backlight of the buttons work!