Thank you Amazon to allow a return, finally I think I'll put 25 euro more for STEELSERIES or MEKA G1. No complaints about the typing feel, although I think the MX Black more suitable than typing games (takes more effort to hold down a key, so not great for all games with fps or keyboard moves ). Otherwise, the keyboard I received a printed F1 at 90 °, it's not serious :( The layout is actually strange, and the majority of photos show a qwerty layout still passable, but qwerty, the left shift is the same size as a regular key, the right shift is enormous and raised / other keys strange. If the switches are of good quality, over and against the keys are rather sloppy: quality plastic, lettering not jojo and not homogeneous. The red LED on the 3 keys caps-lock, num lock and scroll lock off. are frankly too bright, it ends up distracting.
This is one of the most affordable mechanical but I think I'll board on my diaphragm tank (an old wyse which also weighs 1.2 Kg) while waiting to find THE good keyboard.