Should I exchange my Nexus?

Short and simple. I ordered from best buy, so I have a two week window to make sure I'm happy with my unit. The phone is doing two things that are bothering me.

1. Battery drain while idle. I was under the impression this phone was supposed to be a champ here. However, last two nights have shown otherwise. Last night after only 6 hours of sleep the phone went from 100 > 77. A significant decrease in performance over my note 4. The night before wasn't as severe, but no apps running, and nothing under battery management to notice. I should note that my drain while in use meets or exceeds my expectations.

2. Do not disturb. I swear last night, I set my alarm and noticed this feature was on, promptly turned it off, and went to bed. It was on again this morning. I HATE dnd features, never will I want to miss notifications in purpose, I'd turn my fracking phone off, or notification sound to silent. This turning on by itself is not going to work. Seems to turn on when I set my nighttime alarm.

Do I exchange or deal with it?

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Should I give up my unlimited data?

I have a heretical question: Should I keep my unlimited data if I'm not really using it.

My wife and I have unlimited data, kids are on 2GB plans.

My wife uses max 1.5 - 2 GB a month over the past 6 months. I use average of 8GB/month, high of 12 GB, low of 4 GB over past six months. My big data use is videos while on the elliptical at the gym. I can only work out so much, so unlikely my usage will ever get any higher. I don't stream much music at all. Stream some talk radio in the car since local reception sucks. I've never needed to do any heavy tethering, don't see that changing either.

So it seems we could easily be on an 18GB or 20 GB plan (0 or 0 month plus /line). Assume 3GB for each son (they get a data upgrade), 2 GB for wife, leaving 10 or 12 for me depending on 18 or 20 GB plan.

That saves us about a month. Of course then we pay full price for our own phones....if we compare the 2 year cost assuming upgrading on current plan for ~0 a person vs. buying phones for the four of us, comes out to about 0 year cheaper for the new Verizon plan. Not big money at all, but I could find other things to spend it on.

So my question is this - if I'm not currently and never have really used my unlimited data to any great extent should I still care about it and pay more for it for the future? Are there changes to how data is used on phones and how phones use data coming down the line where I might say "Oh man, crazy of me to give up unlimited data!"

Or is this a simple $ calculation? If it's cheaper to go to the Verizon plan and I don't need the unlimited data, let it go.

Appreciate any thoughts/advice about this. Thanks!

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