Battery life seems fine to me, deep sleep is fixed. Really nice how they are providing a nexus/pixel like experience.
I had to factory reset to get the update, but phone feels very snappy now.
Bluetooth audio worked fine this morning, streaming Spotify in my car.
Now they only need to fix/improve the camera app... though i'm getting good results with a google camera port, but HMD should up their game on that area.
Battery life get worse in 13.Feb.2018 Oreo release.
Earlier I could use phone over weekend without charging (light use: couple of calls and little internet browsing).
After 8.1.0 update battery goes 100% -> 10% in 24 hours, without using phone.
Launcher3 seems to be application, that ruins battery.
This kind of current consumption makes phone pretty much useless. Hopefully you manage to correct this showstopper fast.