Hi loyalists! Posting here even though I am now longer an Insider. I have actually switched back to my 950XL DS for the past 2 weeks. I bought a Mugen Power 9300mah battery/back for the phone and put it back into service. Almost immediately, I had Bluetooth issues and had to do a hard reset to fix. After the hard reset, I lost the CraveTV app (disappeared from the Store) and I discovered the NY Times and Starbucks apps no longer function.
However, I have found that mobile websites are OK substitutes in most cases (although they don't tend to keep you logged in as well). As a bonus, I can use Crave TV through Edge (in desktop mode and with a little fiddling), so I have that and Netflix for video.
But the 9300mah battery is amazing. Yes, the phone looks funny, is heavier and cases don't fit but having that kind of battery life papers over a LOT of cracks with apps and OS. I can use the phone as much as I want, doing whatever I want, all day without ever having to worry about charge.
Mugen makes big batteries/custom backs for lots of Android phones with removeable batteries, too. If I ever go with Android permanently, I will buy a used LG V20 or Galaxy Note 4 or some such and put one of these honking big batteries in it.