What were your expectations for Heroes 4?

7. What do you mean by "mixing"? Do you mean the ability to hire a hero of an allied faction, for example, playing as Chaos, and order a Necromancer?
...
10. You're just not used to the interior design of the cities. It's no worse than any other game in the Heroes series.

7. Apparently, by "mixing" troops in cities, they mean rearranging them compared to previous versions. I, and probably not just me, also found it difficult to get used to Griffons in Sylvan and so on.
10. And the castles really look cheap. I've already written about this.