Exactly. The only reason I buy Samsung and Apple products is the hardware. I mostly loathe the software they put on their devices. But the hardware is so good that I put up with the bloat, at least until root comes out. However, I just couldn't live with iOS both times I tried an iPad (4th and 6th gens), even with tons of Cydia apps on them. Honestly, iOS is less user friendly and more weird dead-end bugs than Android has.
I really hoped LG, Sony, HTC, and others would compete with Samsung hardware and let Verizon sell their flagship devices, but they didn't and I ended up with Samsung products against my will, haha. Now my family of three has Note5, Note4, S7E, S6, and a spare S4. I guess if you can't beat 'em, join 'em. Just glad we got root for the Verizon S7Edge.
That said, I've rooted my S7E, installed Xposed and 7 or 8 modules, Flashfire and the big zip fix, set up Greenify, Amplify, Titanium freezes, etc. to help battery life, and am seeing about 2% - 3% standby drain per hour on fairly weak 4G signal and was seeing about 1% stand-by drain per hour at home on strong WIFI. Pretty much exactly the same battery usage as before, though I suppose there is less potential for services and apps to use battery now that I've frozen 61 items. I do use AOD (always on display) and I have a Gear S2 watch connected to it. I didn't root it to save battery life, to be honest. I have wireless chargers all over the place, having used them for all my phones since the LG G2 came out, so my phones almost never dip under 50%. I root it for Xposed modules, Titanium/MyBackupPro, ad-blocking that doesn't use as much battery as AdGuard VPN does (8% - 10% of my battery life seemed to go to AdGuard), other root-only apps like Sixaxis and Viper4A, and just tweaking the UI to my liking.
Sorry for the rambling on...