Yeah, 'Vortex' was an early gem.
It's remarkable how much this episode goes to describe Changling culture, even if it was probably unintentional at the time (was it?). After all, the audience is still left with as big of a mystery about Odo's origins as before, considering Croden's Changling stories were mostly just fanciful tales.
I'm rather surpised Vortex
doesn't get many nods for the very short list of Must See S1 Episodes.