I just ended up the day with the first full charge cycle in the week with little less than what I was averaging because I was all afternoon streaming Youtube videos to my Chromecast and then I streamed The Hobbits 3 from Google play movies and that alone was 2 hours 24 minutes of streaming. Even that I got 6 hours and 4 minutes of SoT of a mid to heavy usage day.
I really hope that the latest Google play services app, announced today, get to all of us soon enough so people with the infamous Lollipop Google Play services bug try it and see if that together with recent Samsung Push update fixes your drain issues, the rest of you with the Cell Standby drain is a little more complex, but I insist for those of you that have tried the different tweaks posted, to try the wipe cache partition in recovery mode and turn off Wifi calling, and VoLTE until you need them and the turn off completely the Smart network and Scanning always available options on the Wifi settings, if all of that doesnt work try a full reset in recovery mode and do the same tweaks, if still have the issue get a replacement or if you don't want to try again or don't want to wait for a Google or Samsung fix just return it and get your money back.
This phone, without rogue apps or drain bugs is capable of a very good, almost great battery life and like I've mentioned a couple of times already, is that what amazes me the most is that it's doing that with just 2550-2600 mAh batteries on the best display currently on the market that happens to be a 5.1" QHD monster display.