I can relate to certain parts of the author's post, but not all of it. I do like that I can focus very intensely and work for hours on end on a single subject, BUT (and it is a big but) it is very hard for me to get there and I have to be vastly interested in the subject. Sometimes I can go weeks, or even months, on a very exciting project (80 hour weeks voluntarily) only to get to some very mundane or boring parts and then go weeks struggling to work at all (and spend weeks trying to shift into a more exciting part to get me revved up again). If it is a subject I hate and don't find interesting at all it is very difficult to get the work done. Overall, I consider ADD in my case way more of a negative than a positive. I'd give it up for free in a heartbeat.