Pros: Great graphics, open world gameplay, amazing universe to explore.
Cons: Can be a bit glitchy at times.
Skyrim is a game that almost defies description. The bar for rpg's, and games in general, has been raised exponentially by Bethesda, the creators of The Elder Scrolls series. You live in a land called Skyrim, which is chock full of monsters, dungeons, characters of all kinds, and enough quests and content to keep you busy for hundreds of hours of play. The main quest line can be completed in anywhere from 2-10 hours depending on your play style, but don't let that fool you. Skyrim has an incredible number of side quests and dungeons to explore. Not to mention the new and amazing "Radiant AI" system. The game actually generates quests for you.
For example, you help someone escape a dungeon. This raises his disposition towards you and he agrees to follow you around and help you. Sometime later your companion disappears and shortly after you receive a ransom note because he has been kidnapped! you must hen go on an epic adventure to rescue him (or not, it's up to you.) This is just one of thousands of possibilities that Skyrim gives you that keeps the game fresh playthrough after playthrough.
Graphically, skyrim is amazing. I find myself stopping to look around all the time, and I can'e ever remember doing that in a game before. Climbing to the top of a mountain and seeing a breathtaking view is something I highly recommend. (and not just because of the view, chances are you will have quite an adventure on your way to the top!)
In a nutshell, Skyrim is amazing. It is graphically superb, has awesome gameplay, is incredibly deep and with it's radiant AI support almost unlimited playthroughs. Get this game!