It's a shame that there are practically no free resources on the maps, and I haven't noticed anything like mills or gardens (which makes the second hero almost unnecessary in such a setup). I really miss the old, rare resources!
I don't like the fact that almost all units have high speed and reach the end of the map in just two turns.
The attack magic is very "weak" (I played as a mage); the damage from Fireball was almost the same as a regular attack, so what's the point of taking it! In general, I don't really like the spell system!
Gold mines now only bring in 500 gold – that's ridiculous, although I didn't have any particular problems with gold, but only because it was difficult to build the Castle (I mainly lacked crystals)!
It's not indicated what the growth rate is in the Castle!
You can't use the same magic every turn! Considering that there is almost no magic at the beginning, and even what you manage to learn, you have to use it every other turn!
It's a pity that they didn't bring back a good feature from the 5th part: when you hold down Ctrl (or Alt, I don't remember), you could use Fury to attack, and it wouldn't move back.
Overall, my impressions are mixed: for example, I really like the graphics, but many simplifications, shortcomings, and new features spoil the gaming experience. To be honest, I'm playing without much enthusiasm(((