Early 3D is a little jarring to me because of the low framerate on a lot of titles. It definitely takes a while to adjust. That said, I was on a PS1 kick just a couple years ago and after a little while I started getting used to it and it was no longer an issue. It is unsettling for me [i]now[i] to go look at 15fps 3D because my eyes aren't used to it. If the game is fun, though, I'll stick with it.