What is Gears of War known for?

When it comes to the game "Gears of War", what aspects does it primarily stand out for? Is it the intense, visceral combat sequences? The gritty, post-apocalyptic setting that brings the horror of war to life? Or perhaps it's the memorable characters and their development throughout the series? Could it be the intricate weaponry and mechanics that provide players with a sense of empowerment on the battlefield? These are just a few potential reasons that may explain the enduring popularity of "Gears of War". But what, in your opinion, are the defining features that have made this franchise a household name in the gaming community?