Of all of the games I've played over the last 10 years, Riot is the least of my worries.
They don't always get it right, but the amount of time they do is impressive. When something does go wrong, they admit it and fix it. They also pay a lot of attention to the fan base, without just doing what the fan base wants.
I'm really proud of Riot, and feel every penny I've dropped into this game has been more rewarding than any other. Even now where I'm not playing this game so much (we all go on breaks) I'm still buying a few skins I like b/c I know I'll be back.
Other games that have dropped the ball typically do it b/c they won't reverse a decision. This is the single worst offense a game developer can make. Let's face it, no one is perfect, everyone makes mistakes. Bad companies turtle up and ignore the ragings hoping the players will "see it their way." Riot cops to it. Even if they don't revert, they explain their logic behind it. Their developers always have amazing insights into game development and game balance that I appreciate, even when I disagree.