What is your opinion about Heroes IV?

I would like the fifth installment to be based on the fourth game, not the third. After all, the fourth game had more realism and tactical possibilities. The graphics and sound were also good. Those who say that the fourth Heroes game is worse than the third simply couldn't get used to the better changes in the game. Personally, I liked it when the hero participated in battles, when not all buildings were constructed, and when magic was unique for each race...