False praise
So to tell you the truth, as far as the delivery is concerned, everything was perfect as usual.
On the other hand : THE POLLING RATE
The polling rate announced on the product is 1000hz but they don't specify that it's not the polling rate at all but the refresh rate of the usb hub which can go up to 1000hz. Their firmware is not in good shape at all and offers a polling rate of the most miserable for a so-called "gaming" keyboard, the real polling rate is 62.5Hz. Even low cost keyboards generally offer at least 125Hz and all this without mentioning chord splitting (the keys clicked at the same time are not in the end either, but are shifted by milliseconds as well.)
Explanations: As a VSRG player (Virtual Scroll Rythmic Game: Osu!Mania) every millisecond is very important to get good scores. The judgement of each key is precisely based on milliseconds.
Returns illico presto despite the quality of the keyboard which is really cool.