Every product on Stripe:
I found myself trying to scroll down as well, and when I realized I couldn't, the second wave of animations snapped my attention back to the top, and I said "well, let's see what this is about".
I think walkthroughs like that one rely on the "aha" moment. Once they had my attention, it was an impressive, easy to follow, informative mini-tour. It's getting that buy-in that's tough.
While I imagine it turns many people off, I also assume that those people have low interest in what the page is about.
So in that way, there's a sort of upfront filtration, where the people who aren't very interested get turned off, but the people who are watching intently get a better-than-usual payoff.
I'd really like to see the research that went into the page. Stripe's design team is on point, so my guess is that they did their homework.
I am all for http://contrastrebellion.com/
The connect landing page did a poor job of explaining what it was or did. It named dropped some things it hoped I would recognized, had a fancy graphic that kinda lags on firefox, and I couldn't figure out what kind of problem it solved.
It's sort of about letting people transfer money to other people, with me sitting in the middle somehow? I have no doubt it exists for a reason, but a reason I can not ferret out.