The interior decor looks pretty cheesy.
Part of the problems are "The building's heavy security, long elevator trips and high service fees"
How can the project be described as a "flop" if there is 80% occupancy? This place is not exactly affordable by 99.999% of the planet. How does heavy security discourage buyers? Cost? Intrusiveness?
What's a "long elevator trip?" Two minutes? Three days? What?
I know that if I need to ask, I can't afford it, but nevertheless, what are "high service fees?"
As additional idle speculation, certain details of the project have never been divulged. This is not limited to security related matters.
How is water pressure maintained to the highest useful floors? What is the water source?
What precautions are in place to guarantee electrical service under all circumstances? How many floors must a resident or occupant walk down under "everything has failed" conditions?
How many potential (lucrative) hostages are available for the inevitable koranimal atrocity? Even Mecca was attacked occupied and major damage done to it (1979, look it up), so no place is truly safe so long as koranimals are about.
When (not if) islam finally self-destructs (there is no shortage of the insane ayatollahs trying to do exactly that) this building in the middle of the desert, with insanely vulnerable water supply and sewage treatment plant run either by rich apes or rich-but-very-nervous foreigners will stand alongside the Sphinx, Angkor Wat, Tenochtitlan and Machu Picchu. Puzzling, megalomaniacal irrational monuments to self-destructive cultures.
I see another Babylon.