Soooo, I recently received the MM upgrade on my Z5P.
I must say, the phone feels much snappier. So snappy, I make a lot more typos (I use Google keyboard).
The battery drain is still there, never a full day of heavy use and I leave my bluetooth on, yes yes I know.
They should've upgraded the max resolution, but ah well.
Like 1440....
Other thing I noticed, when I delete all my recent apps. The homescreen comes back on much much faster. TU SONY.
And that thing about BT dropping, yeah I got it too.
All in all, IMO, this upgrade is a solid upgrade.
They fixed some things but they also messed up a lot.
Let's call it a tie.