Has anyone had any positive experience with a particular type of inhaler. I have on the low side of moderate COPD and have been using a Breo Inhaler for the last several years. It hasn't made a difference whatsover in my breathing. It's still hard for me to breathe when I walk up hills or exercise. My doctor says I should keep on using it because it helps avoid exacerbations. I see these ads on TV for these inhalers and how they are supposed to help people with COPD breathe easier and I get so frustrated it isn't true, at least from my standpoint. So I wanted to solicit any input on any positive experiences with a particular type of inhaler.