I also bought the Dash, the Headphones, and the AirPods and I came to the opposite conclusion. I returned the Bragi products and kept the AirPods.
The Dash and Headphones sound quality is completely odd -- a lack of mids, and what sounds to me like a lot of added reverb. The AirPods sound way better to me, they fit better, and the battery life and case are great. The Headphones buttons are HORRIBLE and borderline unusable (too stiff & you have to press them into your ear). With the AirPods, you just pop one out to pause. A light double tap on the AirPods and Siri pops up. And the Headphones don't even have a charging case. Sure the AirPods look a little goofy, but people know what they are -- I get stopped on the street, at work, at the gym, and people ask about them -- and sometimes flirt a little. Hey, thanks AirPods!
I think the Dash has potential -- but even though it had a big head start to the market, it was a total technological failure. It'll be interesting to see if they can fix the problems and keep developing the product -- it will do a lot that AirPods can't. But in my opinion, the Headphones are a joke. It's subjective though. Do what we did, buy them both, and keep what you prefer.