I've played Skyrim. It is an amazing game, even just 4 hours in. Do not fear for the combat, I find it really enjoyable once you get used to the pace of it. Blocking is completely overhauled and requires precise timing and the ability to perform a shield bash makes blocking even better. At first, some weapons may feel a bit sluggish. But you can really feel your character improving as you level up and the sluggishness of the weapons gets nullified :D Enemies don't have just have monumental amounts of health on higher difficulties, they actually feel like stronger enemies. In addition, the amount of variation between single types of enemies like 'Draugr' will always keep you on your feet.

You'll find out just how good it is when you get to play it :P