The window crack patters when you crash are forever burned into my mind. Which is to say I loved playing the '88 version when I was a kid, but I never quite mastered the subtle art of not crashing.
Ailerons could be quickly returned to center with Num 5, but IIRC elevator controls did not have such a shortcut, and you couldn't react quickly if you went too far off. I wonder why they didn't include auto-centering for keyboard pilots.