Problems with Heroes of Might and Magic IV.

because many players judge games based on their first impression... it's like stereotypes; no logical explanations are needed here.

Well, there are many who don't judge based on the first impression.
I played it for quite a while.
I don't like that it's not like 1, 2, 3, or 5. And therefore, it's not a "heroic" game.
Soldiers fight each other simultaneously. They move without a commander. It's impossible to form chains of heroes. Heroes participate in battles. I don't know what kind of skill system it is. The ability to take multiple heroes in one squad. Potions and elixirs.
(Is this like Disciples + Age of Wonders?).
For me, all of this is a disadvantage, especially when compared to any other part of the Heroes series.
The game is good, of course, but the name doesn't fit.

The editor for the fourth game, in my opinion, is the most convenient of all the games.

Oh yes. You can create practically anything you want. Everything is in front of you.
It's simple, without any complications, with a very large number of possibilities. The best.
It's not just the most convenient; it's THE MOST CONVENIENT!!!:D