Ok here goes, first of all I really enjoyed the demo, I love the atmosphere, graphics, gameplay and all the little details. The love that the game creators have put into this game really shows. but there are some minor issues that I would like to point out since mainly all reviews have just underlined the things that work and are really good, I'm pretty amazed that no one else has yet mentioned these.
First of all, the combat, I love the strategic turn-based combat, and the animations are very nice, but already after a 20 battles, I get bored to the slow movement animations, all the charaters take time to rotate, wave their sword etc. all nice details at first, but especially when fighting "cannon fodder" aka. enemies that don't really pose any threat or require much strategy, I would really like an option to speed up the combat animations. All the HOMM games have had this, and I would say it really has proved it's worth, especially later on. This issue is not a show stopper, but slow animations get really annoying later on.
The second issue, very small though, but I can't quite understand, is that the floating numbers when you hit a character show the damage, but not the number of creatures you kill with your blow. (I know, the bottom bar shows it, but the floating numbers are easier to follow IMHO)
The third issue is with the camera-rotation, there really should be way to adjust how fast the camera rotates, and way to invert rotation would also be nice. Rotating the camera is really too fast, it spins like crazy when I try to rotate just a little, maybe an issue with
too good FPS on my PC