You know, I gotta say, so many of the things that drew me to WP in the first place are disappearing. Not just from what I see in Windows 10, but it all started with Win 8.1 really.
-Black/dark background UI is beautiful and clean. Now it looks like they might switch it to white, which is fine, but I sure love the dark look.
-Where are the hubs? Such a nice way to organize similar things!
-Panoramic/pivot layouts. SOOOO nice! Absolutely in love with it. Now disappearing for hamburgers. ugh.
-Super clean and flat design seems to be disappearing. Background wallpapers? ugh. I thought backgrounds on the tiles were bad enough, this makes it worse. It's going against the very principles of the design that made WP so unique and beautiful in the first place.
-An end to the super duper responsive and snappy interface. Now I see the Resuming... screen way too often, for way too long. Even on my 1520 with 2GB RAM and snapdragon 800. It's become so bloated it cannot run nearly as smooth as wp8.0 did on my 520.
-Now only pureview phones have dedicated camera button. As a photographer, a standardized camera button was one of the best things I could have ever wished for on a phone!
There's been some nice additions, don't get me wrong. But all the things that made WP unique and drew me to it seem to be disappearing. All that's left are live tiles, which have decreased in importance with the Action centre.
Don't get me wrong, I still love WP, but it is getting harder and harder to find reasons to NOT try something else again. Like I said, what made WP so damn unique and intriguing is disappearing.