So much as mention knocking again and you'll be slaughtered!
But I agree that the place is terrible inside - I'd like to say that the place could be restored to 'its former glory' but it can't.
I'd like to say that the interior has essentially good design features and that it could be brought back to life - but really the place is bloody awful inside.
It is fundamentally dated and tatty - the concourse ceiling appears to be made from squares of hardboard and the flooring is in bits.
So much of the interior cladding is beyond repair and is horribly out of date.
The exterior is excellent architecture, and has beautiful original features and good design elements like the bronze windows, the quality brickwork, the Portland stone etc - but the interior has little else with the exception of the mosaic-clad columns, the wood clad walls and the overall sense of spaciousness and lack of clutter (structurally)
These elements should be preserved, but otherwise the interior should be completely overhauled with quality contemporary design.
I thought the place was in better shape than it is, not having been in it for years until a few days ago, but really, the concourse is horrible - it must be so depressing on a wet Friday night.
Of course the real issue is what CIE intend on doing with it as part of their plans - 'quality contemporary design' is more than just a little alien to them.