Pretty accurate, really.
A few hairs to split, though:
5.9 is more of a moderate, middle grade. 5.12 or so is where the line between "mere mortals" and "crazy-sick gecko-people" is usually drawn. Anything harder than 5.12 (as of now, the highest grade is 5.15, and only three or four people in the world have done climbs that hard,) typically requires dedicated training, frequent climbing, etc. Those poor saps like myself that can only get out and climb two or three times a month (I've got a morgtage, a girlfriend, two dogs, three horses, and a cat....) don't often get much better than 5.11.
Some terminology: Free climbing means using your hands and feet on the rock to climb up, and gear to protect you if you fall. Aid climbing is a different animal, and uses the rope and other gear to move up. Soloing is climbing alone (and can be done with a rope or without.) Free Soloing is free climbing without a rope (you fall = you die.)
Best,
-- Reno
"If you can't say something nice about somebody, you must be talking about Hillary Clinton." -- Jeff Foxworthy