its good enough to use out of box.
better using global stable rom because malaysia set using it.
if import set usually will using china rom.
i think can download playstore from china store.
if the shop have service to install global rom is better.
ask free service kao kao if buy from them

i bought from a local seller, they shipped the phone with global rom, rooted. with play store.
they applied tempered glass also. nice one, i think most shop will do this if you ask nicely~