Got a Moto G Second Gen as a gift and just bought a Lenovo Yoga 2 8" Tablet during a Christmas sale. Moved over from Windows Phone/Blackberry. I was originally planning to use MS's android apps but after trying to deal with it for a day or so it became abundantly clear it just wasn't going to happen. On WP the MS ecosystem apps are competent, but on android they're pretty bad.
Google Play Music is infinitely better than Xbox Music on android. The mobile version is fully featured and fast, unlike Xbox Music where you can't look at music beyond your collection (or if you search for a specific song). Plus, there's way better prices for Movies and Music. The apps on all ends are just so much better. Only real negative is Google Docs being worse than Office, but I don't really mind.
Don't even get me started on the app situation in comparison to WP. I actually can play the latest games and try apps that my friends are using.
Definitely going to miss the connectivity to my Xbox (OneDrive, Xbox Music, Xbox Video, etc), but I might end up with a Nexus Player or Chromecast eventually so that'll probably fill that void.