Like the author describes, activating the mic on bluetooth headsets on my mac - airpods or 3rd party - brings the audio bitrate down to a quality comparable to AM radio. Strangely, I can use the airpods to make calls on my Android phone with little issue.
Audio aside, I routinely encounter bluetooth devices that just won't work with my mac. For example keyboards that send just a few keystrokes then bug out or mice that lag and teleport all over the screen.
The most infuriating part is that I can attach a USB bluetooth adapter and use it instead of the builtin mac one and all of these problems go away. But am I going to carry around a port adapter and a dongle so I can use a feature that I paid for in my laptop anyway? As if. Furthermore none of these accessories have trouble with other computers - even older macs!
/rant