Through the non-existent number block the keyboard also has a very good size, fits into almost any bag / backpack and on your desk. As regards the portability I have to say that the keyboard to my mind is unusually heavy, which is not necessarily bad. (Admittedly this is my first mechanical keyboard.)
The LED Belecuhtung I find "OK" -
On the one hand are really just the W, A, S, D and arrow keys illuminated what I do not quite understand. I mean, a "pro-gamer" of the predominantly white Shooter playing in any situation where his keys are - an illumination of the other buttons, which are on the other hand not so often used therefore seems to me somehow logical :)
The brightness of the LEDs is good and dimmable. With highest dimming is switched to the "Breathe" mode, the keyboard LEDs, ie light and dimming of LEDs - This "Breathe" mode is not quite as nice liquid such as in the LM 30 mouse.
The supplied milky blue / W, A, S, D keys replacement in my opinion are just a nice extra. Dadruch that the LEDs do not sit directly under the key but a bit higher, the blue buttons are not fully "enlightened" and the LEDs cast a shadow inside the buttons, which looks a bit strange. But the idea with the completely under-lit buttons I find pretty cool in itself.
You see, I actually find fault only on the lighting, function and processing default, the keyboard 1A.
However, I find the 80 euros for the keyboard a bit much.
######### EDIT / SUPPLEMENTARY ###########
I must admit I never really dealt with mechanical keyboards, for a bit of research, I have to say that not at 80 euros seems so much is for a mechanical keyboard. So I revise my previous criticism of the price therefore.
PS: Oh, still quite nice - you get a fabric / rubber palm rest so. That's really quite comfortable :)