It sure looks cool, I think Heretic_Cata has it, maybe he'll care to give us a review ?
Ok
It is one of the most fun TBS games i ever played.
It is impossible NOT to compare it with Heroes5 so i'll say a few things.
Combat is much better than in H5 - there are all sorts of tiny little things that make it better, but the biggest would be the creature number limitations. In H5 you'd only need to get a BIG army and wipe almost anything off the map with ease (except the oponent players). In King's Bounty you cannot have large armies without
leadership. Which is a thingy that you get by leveling up (of course being a warrior, you would choose more leadership when promted to choose; a mage OTOH would go for less). So no big armies. However, later in the game you will have rather significant armies, and if you forgot to clear an area earlier in the game you would still have to fight the creatures you left (however weak they might be) - because there is no Quick Combat like in H5 (unfortunatley). Oh and another thing, King's bounty is SINGLE player game. No multiplayer and no oponents in the H5 sense of the word - which is one of the things that i love.
Leveling up - there's no skills like in H5. You get to choose between a few stuff when leveling up. Most important being runes. With runes you can learn skills from the skill tree - Diablo style. There are 3 skill trees and iirc they are about 1/2 different for each of the 3 classes.
Also, being a singleplayer game, they could work on the graphics a lot more and create some epic sceneries.
Let's see what else ... you get fun boss fights, you can upgrade spells, you can upgrade artifacts, you get the rage box which is a sorta alternative spell book.
Oh, one thing sucked. The story. In fact i wasn't even paying atention all that much to it.
Of course H5 certainly has several advantages over King's Bounty as well. But all in all i couldn't decide which is better between the 2. They seem similar but quite different when you play them. King's bounty has a much more developed RPG side and H5 has a more developed TBS side. So i guess i love both.
However i don't recommend the game if you want to play this with your friends. If you want to do that you should wait for the addon that is supposed to be coming in a few months. It might have multi.
These being said i'm looking forward to Disciples3. Waiting to see toward wich of these 2 games does it lean to.
thanks for the review, it certainly sounds interesting. It might be something to play in the holidays. 
