it had its flaws, and some missed potential here and there, but overall it was a great mod, i especially loved the 1980's section

Eh, it's fine. Not the best by far, but if you're craving some Half-life 2 -esque gameplay, this'll hit the spot just fine. Like other reviews have said, the level design is average and there is some missed potential with the concept, but it's nothing too bad.
The noir and sepia aesthetics are fine, but the 1980s aesthetic is especially cool. The autosave is a bit janky in this one though, so make sure to quicksave often.
Anyway, it's free and although it may be like a 6 or 7 out of 10, I'd still recommend picking it up if you like Half-life 2 (although I would say Entropy: Zero 2 is a much better stand-alone Half-life 2 mod).

Good, creative, and fun.