Honestly, I didn't like Vertigo all that much, it wasn't my cup of tea. I found its titles dark, overly cynical, trendy, and ultimately, pretentious. And as Vertigo evolved into the early/mid 1990's, vulgar and profane.
But I still recognized in those years (1988-1997 or so) that Vertigo was expanding comics readership, bringing in readers from other subcultures and literary circles who normally would never give a second look to the episodic superhero genre that has existed for decades.
I liked a lot of the titles. But I also liked the fact that for the most part it was a standalone universe.
The problem with both Marvel and DC these days is everything has to be so interconnected.
I’m not talking “we know Spidey exists in the same universe as X-Men” interconnected. I’m talking “every issue of every book has to be part of a months’ long intercompany crossover team up” interconnected.