You don't "need" a high end keyboard to enjoy your favourite games, you don't even need the best equipment to be a winner either, but that doesn't mean to say that it couldn't help.
Fantastic typing response; Huge amount of macro keys; Aluminium chassis; Well made and durable; Premium design
Might be a little expensive for many; Only available with MX Red Switches (even if they are very good; it's nice to have a choice); Macros restricted to G keys