They unpack and test every phone, regardless of the unlock process. This is in order to reduce DOA of the devices and provide a higher quality service. The phones themself do not have any marks / signs of usage.
Also keep in mind that the chinese device bootloader is locked, with a very strict unlocking process, unless you would use paid services to unlock it for you.
I am also interested in this phone for a family member. But if it is as you say @xMarvin732 then I will also wait for the international release. Any info on when that happens?
Thank you!