I tried a set of B&O earbuds a couple of years ago and was suitably impressed. Arguably a bit overpriced, but definitely a quality piece of equipment. AirPods unfortunately just don't offer the sound quality I've come to expect from modern earbud designs from companies like RHA, so I'll definitely be trying these out once they're available.
It's funny how people will judge audio differently. I find the audio quality on the AirPods to be downright impressive. They sound much better compared to the EarPods and as one who normally uses expensive IEM's like Shure SE846 and expensive headphones like Sennheiser HD 800 and wireless ones like Bose QC35, B&O BeoPlay H7, H8 and H9 I still find the AirPods to sound great, especially considering their size and how darn handy they are to use. They also feature really impressive microphones, something that pretty much everyone else lacks.