The more I use 8.1 the less it feels like a WP. The hubs have been regulated to being placeholders for lousy apps. Everything is app based, the integration is gone. It really is a blow to the unique experience that WP offered. WP8.1 is currently smoked by WP8 and even WP7 when it comes to these things which is pathetic and backwards. I welcome the awesome additions, but did they really have to remove so much as well? I find the Me tile to be useless. Check-ins and status updates just forward me to Facebook (linked in surprisingly still is integrated), which just has me pin my Facebook app and remove the Me tile. The People hub has been turned into a contact list since if you interact with anything in it you just get booted to the Facebook app. What's the point of even having a me tile and people hub? I have both unpinned because they are easily/forcibly replaced by Facebook (which is slower to load). If I need a contact then I have them pinned or just access it from the dialer (which still does not have smart dialing). Its a shame because the news feed in people hub looks improved over before, but has become redundant. Music has been stated over and over again, its horrible, especially if you have a lot of music that isn't even in the store but the store thinks it is and throws some crap on your music. This can't be turned off... so I'm using Nokia Mix Radio. Photos still don't have album creation, so its still impossible to organize photos, and we also lose the central place to see photo updates in a beautiful app.
Basically the things that worked beautifully well were gimped for no real reason. Also the way backgrounds are implemented is poor imo. My layout barely has tiles that the background image displays in, and I can imagine quite a few others are about the same. It looks really nice if you have the tiles that support it. I really wished they did it another way.