So I just finished the game. It's my first VN. I don't watch much anime either -- got nothing against anime, I just haven't gotten into it.
What I'm trying to say is that I feel there was a lot stacked against me liking Steins;Gate.
I LOVED it.
It took me a while to get used to the endless button pressing to run through dialogue options. And it took a while for the story to click with me. But now I laugh when I see people starting out asking "Do Okarin and Mayuri get any less annoying????" because omg, they do, they really do.
There's actual character development here. There's a great, great plot. But mostly, I love seeing a story that really takes advantage of the media it's on. Being inside Okarin's head and "hearing" him progress from carefree nutjob to a serious, driven man with a tortured soul is an incredible experience; I love the moments when he jumps back, pained and suffering, while everyone else is all "uhh where'd the mad scientist go why are you being so serious right now?"
And that development is what makes it work, IMO. I called a lot of the twists in advance, WELL in advance in some cases. But a good twist isn't just about causing a shock, it's how neatly it fits into place. And the game nailed almost all of the reveals. It didn't matter that I knew what was coming, because it felt great anyway. (And in a sense, it rather fits the mood through the middle of the game of "fate is set, you can't stop it".)
Yes, interactivity is limited, but it's interactive enough to drive you to different endings. Time travel stories are all about the various possibilities, the crazy outcomes, and this game allows you to experience the whole "well, what if..." alternate options.
And... that true ending. EVERYTHING ABOUT THAT was great.
So yeah, I guess you can say I'm a big fan now. Whoever in this thread posted in a past PSN Flash Sale thread urging people to pick up Steins;Gate, THANK YOU!