The only difference between the demo version and the full paid version is the time limit and scenery. The full X‑Plane scenery package covers the Earth from 74 north to 60 south latitude. Here's a list of the default included aircraft.
KGEU does not have any user submitted scenery on the Airport Scenery Gateway. With the default scenery installed, the runways should be modeled accurately, but other buildings or airport features may not be.