I have not had any function-breaking difficulties with new builds, although inexplicably the last build does cause my Bluetooth tile to stay lit regardless of whether it's on or off which is weird.

I can't fault you on the S7 - I have gotten a couple of them and they are damn nice phones. I seriously considered jumping ship with the last one I got, but I think I'm willing to have Windows quirks in trade for getting to use the Windows UI. I dumped my personal iPhone (a shitty old 5) because I just couldn't take backwards-ass iOS anymore and replaced it with an equally old but less shitty Galaxy. I used it the entire week at Burning Man (it's disposable!) so got back into Android a bit, but I still prefer the Windows tiles interface. It's fast and I am fast with it. Plus, the integration with the Xbox and Windows 10 is so, so nice... although it's been months since I've touched the Xbox. Still...