- For about a month in use - Negative: lighting for the sign μ. - At all for all the characters that are in double-assigned keys down very badly! So if you want to create files that contain such characters have to stop as with a keyboard without lighting work - what just was not so in the sense of the thing. Tip: orR one remembers the sign above it well-lit ;-( Caution Double occupancy in the top row is compared to the usual standard mixed up! [Example 1 (above) and! (Below)] - Positive: as a gamer keyboard suitable outstanding Conclusion: unfit for normal typing in dark environments - therefore I should not backlit keyboard needed. recommended for most games.