I switched from another Inhaler long ago and have been using Stiolto Respimat ever since. It's mist vs powder seems to get deeper into my lungs. It is expensive but worth it for me as it relaxes my tight chest quickly in the mornings. Definitely one of the good ones.

Yes, I've been using it for several years and depend on it. Given its price, I'd have to guess it's the best one out there!