Well. I had all three, and I seemed to have managed apparition for the very first time. I figured it was about time to make the effort, since in my dreams I had just gotten my license for it.
They were not wrong, it definitely makes you vomit the first go around. Fairly unfortunate that, but at least I was prepared to expect it.
Hermione, were you still interested in learning? Also, I've finished your book and mean to return it.