I just completed the main storyline, and I think I'm done. I did the companions quest line and I don't really feel like getting involved in the war since those guys are all jerks.
Also, the game kinda feels a bit broke now that I've got that full set of enchanted daedric armour.
Plus there's only so much hitting stuff with an axe I can take.
The game is a solid B+ though. The dungeons are a lot less repetitive than in oblivion, and the story/game world is actually pretty interesting. I love the morally grey rebel vs empire war, although the evil elves lurking over to one side rubbing their hands with glee kinda ruins the effect a little. I mean, it's pretty damn obvious that it's all part of their Machiavellian scheme.
The one major gripe I have with the game (apart from the voice acting, which is something I'm willing to forgive since I don't think I could say many of these lines with a straight face anyway) is the levelling mechanics. They can make the game rather irritating.
It makes the difficulty of the game feel incredibly artificial, and it also tends to screw you over if you spent a lot of time levelling up alchemy and speechcraft. It's really very irritating, and the fact that you
have to use your training allotment when you are given it is also pretty annoying, especially considering how expensive it is, and how little money you have to start with.
Incidentally,
this, is excellent boss music for fighting Alduin.