The -afinils I have to space out or combine with an anti-histamine and dose very carefully. When I didn't, I got very itchy skin like an allergy (and I've never had those before, though there is family history).
Never tried Ritalin or Mydayis, though some of my friends swear by it.
What's your experience been like?
Any kind of skin reaction to -afinils would scare me off using them entirely, due to the link with Steven-Johnsons syndrome (warning: do not google, or use a text-only browser to do so)
And you know how it is, you can get SJS from Ibuprofen and Naproxen. You can't live in fear of low probability occurrences. But you're right in that it's worth making that decision in an informed manner, and keeping my doctors informed of what I intend is part of that.