This game is excellent. Its really a RTS, but you have heroes that you use quite a lot, and the heroes are your life line (i.e. if they die, you lose). The heroes gain levels and can have spells or weapon/amour researched.
Graphics are good, sound can be a bit dodgey, occasionally a bit of an echo, but that could just be my sound card. I found myself barely using the heroes, except when there was no other option.
The camera modes are traditional RTS, and a kind of mutated RPG control – I don't recommend it. Stick with the RTS camera.
Overall an excellent game. The game will take you quite some time to finish it, and there is also a free play mode, where you use your hero and do quests. Skirmishes and multi player also exist, and I think you can play co-op as well.