Logitech is getting worse

First of all, clear for the price you can not expect miracles, but:
'Extremely cheap key switch
'Pressure points beyond good and evil
'Extremely Loud
'The rear support points are not gummed, ie the keyboard slip very easily.
Cheap surface material, sweat and fingerprint prone
'Multimedia keys are assigned twice to the F-keys, that is unless you have a problem, but these are dark red on a black background and are not illuminated, ie can not be read or in imperfect lighting conditions to use
'Lighting appeared to be good to me at first glance, however, the backspace and the Enter key when compared to the other buttons only extremely weakly illuminated.

Overall, I am extremely disappointed by Logitech, either one provides good products at a slightly higher price or the margin allowed for cheaper products to be somewhat lower, offering higher quality and thus achieved higher customer satisfaction. This keyboard moves at the level of "no-name manufacturers" to the 20-30.