Dominions 2 is an all time strategy great, with depth to keep you coming back for years.
Micromanagement in this game is not really a problem, no more than in, say, Civilization 3. If you choose to play a massive map with all 17 races, then yes, I'd imagine micromanagement would get very tiresome. However, most maps provided both with the game and available on the website are geared towards fewer players. Micromanagement in Alpha Centauri, for instance, was noticably worse than in this game, particularly when you consider how much deeper this game is than Sid Meier's masterpiece.
The manual provided with the game is ample and explains things well. The interface is fairly easy to learn, after you start a game. Designing your "god" is incredibly interesting, with tons of different mages, monsters, dragons, monuments and other things available for you to deal with, along with the domain aspect, which allows you to increase magic or income at the expense of something else. The magic system is immense, as well. Item creation is literally better than any other game ever, even better than Master of Magic. Discovering an invaluable item can literally change your game. Race specific heroes that will come to you if you set your Luck scales high enough (yes you can control luck, as well!), range from interesting and useful for the traditionally powerful nations to absolutely incredible for some of the unorthodox countries.
The graphics in this game are functional. Nothing more, nothing less. You can forgive them, because strategy games are not known for graphical prowess and also because despite limited resources, the game features tons and tons of different monsters and a functional battle viewing system, which actually can be quite fun, considering you can change tactics before battle for each of the units you put together.
Overall, I can absolutely reccomend this to any strategy gamer or anyone with an affectation for deep, replayable games. This game introduces so many innovations, and manages to balance things so perfectly, that it will provide hundreds of hours and many sleepless nights for anyone who bothers to dedicate some time to it.