Mine came (powered off) with 50% charge.
I charged it to 100% before turning on.
I don’t know if this is relevant but on boot up, at the language selection screen, i was delayed before i selected ‘English’, and I think the screen changed slightly from the ambient orange text colour to white.
I had no issues apart from F-Droid and Aurora store not installing.
I proceeded to update Sailfish, which went through fine
At the restart, i attempted to install F-Droid through from the browser, but was thwarted as it was deemed Untrusted software, so i went into Settings to Allow Untrusted Software, and saw the Aurora Store launcher appear in the app grid without any further prompt (aside from selecting it in the initial setup, on the previous session)