For me, it was fantastically depressing: basically it says: “OK, so you have ADHD. Sucks to be you. Go through this huge laundry list of these and those things to do, don’t forget to take your medication, find a mentor — assuming anybody would want to deal with you, and who could blame them? — and if you are extremely lucky, and with heavy effort, maybe you can become half a normal man or woman who runs through all of this effortlessly, which you’ll never be. What a burden to society!”
All of this is true perhaps, but now I just want to die.
Whilst I didn't get that exact impression from the book, Barkley is known for being "realistic" about ADHD: he doesn't hide the fact that, depending on severity, ADHD can levy a heavy toll on a person, significantly impacting their quality of life. ADHD sucks, but we can make it suck significantly less through good habits, good routines, healthy eating, exercise and, where appropriate, medication and other forms of psychological support.
It's a cliché, but comparing yourself to others is a bad idea in this domain. I have yet to meet an ADHDer who makes these sorts of "upward comparisons" and derives anything useful from them; they typically just exacerbate feelings of inadequacy and hopelessness.
Personally, I know I might never be as effective or productive as a person without ADHD is capable of being, but I can be the best version of myself — it's fruitless and unhealthy to ask more of yourself than this, right?
For me, it was fantastically depressing: basically it says: “OK, so you have ADHD. Sucks to be you. Go through this huge laundry list of these and those things to do, don’t forget to take your medication, find a mentor — assuming anybody would want to deal with you, and who could blame them? — and if you are extremely lucky, and with heavy effort, maybe you can become half a normal man or woman who runs through all of this effortlessly, which you’ll never be. What a burden to society!”
All of this is true perhaps, but now I just want to die.