Theresa-
I've been on Mirapex for several years now. I am taking more than the typical maximum dosage, which is 4.5. I take 1mg 6 times per day, along with many other PD drugs. I started taking it to replace a much older drug, with hopes of improved response and fewer side effects.
It hasn't been a miraculous change, but I think it is doing a somewhat better job for me and, at this high dose, I have had no side effects to speak of. I'm only 51 yrs old, look (I am told) and feel much younger than my years. BUT, I have had PD symptoms for 20 years now, diagnosed 18 years ago. So I'm somewhat of an "old-timer" in PD terms.
So, bottom line, relatively speaking, compared to some of the horror stories I've read about, Mirapex has been a "success" for me.
I hope this helps. If you have any specific questions, I'd be happy to answer them for you as best I can.
Good luck,
Keith