I have E-IA and have been using Advair Diskus for over 20 years. Its been a lifesaver for me. If I skip more than a day, I'm raspy, short of breath and can't do much of anything. I have not had any side effects from Advair. For the past few years, I've been symptom-free with just one puff/day (mornings) instead of the prescribed two uses/day.
You will probably hear pro and con opinions of Advair. The main thing to remember is that every medication affects every person differently. While I have no side effects, others can have major ones. Thrush mouth for one. So make sure you rinse out you mouth after use.
Hope you can get your breath back - I'd hate to see you give up activities for those symptoms.