How it behaves I can not judge in "professional" games, because I need a keyboard to write texts, less to play.
That the keyboard produces this reverb (sounds so similar to such as you would with an ankle against a glass nudge) bothers me little. As I have tested other mechanical keyboards that were really loud.
The biggest drawback is the "Plus" button and "Enter" at the 10 block. This is critical so that you can return the keys carefully and straight up. If I leave the keys with the spring back quickly, it may happen that the button jumps from the switch. Something I have not seen with any other keyboard. Questions at Rapoo this go unanswered.
I think I'll continue to use the keyboard, as the writing area, which I use often, is quite comfortable.
Nevertheless, for sloping keys there a maximum one star at a keyboard.
A single case, it does not seem to be. I had ordered my two keyboards. In both it is the same.