As per usual, you supply no screenshots.
I'm not gonna bother just pointing that out YET AGAIN, ill just post them myself.
The first thing you see after you spawn is:
A missing texture! Lovely...
This door opens so fast it glitches out, it also closes after a moment even if you are in the trigger.
More missing textures, and now also models.
These rock walls are brushes, not displacements. Also, Brushwork that makes me cry, part 1.
Half-life 2 models, cause why not.
More HL2 models, HL2 textures, Brushwork that makes me cry, part 2.
Every single HL2 handrail model is floating above or next to ground brush.
Brushwork that makes me cry, part 3.
Brushwork that makes me want to destroy the world.
Theres all that, and then theres this:
What the actual fuck...
Verdict: usual garbage, not worth anyone's time.
I'd like to remind you this is not Garry's Mod workshop. Things like these have no place here.