There is a real gap in turn based strats right now and I bought Disciples 3 as a stopgap between now and Elemental release.
Short review: Its ok.
The good: Many reviews are bagging on the graphic because of some glitches or dull maps. I disagree and think its a beautiful game. I enjoy the campaign and I think it will have just enough content to get me through until the strat I'm waiting for is released.
The bad: Its a bit grindy and repetitive. I don't have a huge problem with this but I know its a turn off for some. Also the voice acting is bad.
To sum up its not horrible but its not great. Did you like Disciples I or II? You'll probably like this