Battery life on my 7 Plus is not great, you can see it drop a few numbers in real time with almost no use. What I noticed is that if you open any app that uses the camera, it gets really really hot, aun you can loose 15% in less than 10 minutes, without taken a lot of photos (like 5), and in my case if I use my AirPods to listen to music (app: Deezer) i can see the battery go away quick too.
A few things, sometimes the music app appears like you are pressing on it(long tap), but you are not (opening makes the icon normal again), in my case I need to play some music on the music app to get my phone recognized by my car radio (Sony) and that I can use other streaming app, and sometimes it will not play the music on the music app, the the app closes and whenever you try to play any song, the app closes until you make a hard reset.
those are like the more annoying things for me, but you can use a 7 plus with this as your daily driver just fine.