Build quality of Bose products is good in my opinion. The headphones are alright but so are Sony, Plantronics and Apple. I love the sound of Airpods Pro in particular even if they don't want to stay in my ears [1] and the pairing experience even with the iPhone isn't what I expect of >$100 headphones in 2016.
If you want really good stereo or 5.1 sound there is no substitute for big speakers that can move a lot of air.
[1] maybe it is that gene polymorphism that makes my ears overflow with wax and has my doctor warning they will plug up one of these days
Build quality is trash consumer with a hefty markup. The older CD player era equipment has the cheapest CD mechanisms I've ever seen for the era. The audio pathway is the same hybrids that everyone else uses. Bose is 100% mass marketing. I'm old enough to remember the endless ads in the back of magazines.
Bose is fine for what it is, but it is overpriced for what it is. IMO the main point the audiophiles make is that you can get a superior product for the same cost.
If you haven't tried foam replacement tips, they make a world of difference for me. I couldn't use the airpods (non-pro) at all. I could barely use the silicon tipped pros. But when I put a foam tip on them it not only blocks out ambient sound better, they stay in place. Unfortunately the foam wears out rather quickly and I replace them around three times a year.
Agreed on pretty much all points. There is no "ultimate audio equipment piece" that is just perfect in all aspects, and the choice criteria are spread across both user preferences and specific use-cases as well.
I love the new airpods pro for my daily commute (subway, not a car; just clarifying before I get hammered down in replies for driving and using airpods at the same time), doubly so given their compactness+heavily improved ANC.
For home, I love my open-back Beyerdynamic DT1990Pro pair, due to the audio profile + insanely good physical comfort when worn for prolonged periods of time.
For gatherings with friends for when I need a somewhat-portable bluetooth speaker (that also happen to look good when sitting on a bookshelf outside of active use), I have a TE-OB4.
If I had a larger living space, I would consider getting a pair of high-quality speakers again too.
But there is not a single "this is it" piece of audio equipment that would just replace everything, so you gotta pick and choose your poison.