I would like to share an obsevation/provoke discussion.
After Guilds came out everybody became a Herald at heart. Community opinion on Heralds was pretty high, and stays so.
Which is I think is not exactly correct anymore.
In a lot of games recently I tend to skip/(be passive about) Heralds when any kind of other option is available.
This comes from the fact that latest expansions added a lot of ways to be in a precise control of your deck, and Heralds more frequently than not don't fit into the concept.
Obviously sometimes you just go for them because the exact order in which you play your actions doesn't matter all that much (no remodellers, no gainers, etc), and well, with a good action density they are Lost Cities most of the time.
Also, obviously a lot of combos remain (Apo, Cartographer, Minstrel, Secret Passage etc) where they are still super amazing.
Anyway, if in the past I was glad to have Heralds sleeping all over my bed, now they must be satisfied with a much more modest place on the rug.