I am going to leave this short: an epic game.
User Rating: 9.5 | Europa Universalis III PC
What you get is a fantastic game, fun, not so hard to learn, not to deep into micromanagement but still there are alot of options, good graphics and sound, and don't forget it is easiiy moddable. You can install mods without a problem. So if you want more historical depth, install a mod like Magna Mundi. But even the 'vanilla' game is very good to play. The AI isn't dumb at all (it makes good choices), is competitive, doesn't suddenly betray you (unless you are their weaker neighbour and you got alot of provinces they want, but then it is logical ;) ). Everything is worked out well and almost bug free, and so I can continue for a while.
It is just a great game.