Maybe you should watch it, at least I think you should definitely try! And give it a few episodes... sometimes the first episode can be confusing and it was with this drama, I think!
Acting, music and so on is indeed very good, and like ItsRyia said, it has humour. But, um... I don't know... If you ask me, I don't think it's half as good as NiF (or other historical dramas I've watched like Six Flying Dragons and Gunshi Kanbei). I did like it in the beginning and thought it was interesting, but then I got bored with it. I have to admit I dropped it. I can't really explain why, except in some ways the characters didn't move me anymore, and I didn't care about their motivations?
So... Now you've got two different opinions! I guess that means that people just see things differently and the best thing to do is to try it yourself. :) If you don't mind me recommending another drama, I'll say that Tribes and Empires is better! But of course, that's not strictly historical, it's also a bit of fantasy.