Well, I completed Witcher 2, wish I could say it was a blast but I only really enjoyed the conversations and a couple of fights. On the whole it felt like a slog, I hated the interface, disliked the combat and felt frustrated by all the narrow pathways you're forced to traipse back and forth as you quest.
I did appreciate the things it did well. All the politicking, history and intrigue are right up my street and the locations are mostly lovely to look at but ultimately I think Witcher 3 is the game I wanted when W2 was released.
*edit*
Oh...doors, I freaking hated doors in The Witcher 2