I think it is fantastic. I mean, it sounds older than a 21 (that's her age, right?) years-old would sound, but that's a problem with many of the DP's: Jasmine looks and sounds older than fifteen, Aurora's singing voice is too mature, etc.

I don't really think her voice sounds too old. It fits her well in my opinion. :D

What Gus said.

I think it fits her well at times but other times it doesn't so I would say maybe.

I think it sounds great! Before I saw the movie I had my doubts, but now I can't imagine a non-Idina Elsa.

Yep.

I think so

Before the movie came out I couldn't imagine Idina's voice coming out of her at all. She sounds great and fitting!

It's all right, but I don't think it's spectacular. While watching the movie, whenever Elsa would speak, I would kinda wince and think the voice was all right, but didn't suit her character very well.

Perfectly!! C:

I've seen quite a few people (not just on here) say that both her speaking/singing voice are unsuitable for the character but I definitely disagree. Admittedly her voice is mature, particularly when she sings, but I think she's a mature character so it suits her.

She sounds too old.

I think it fits her really well. I can't imagine Elsa having a different voice.

It seems I am not the only one who thought that it's Idina speaking, not Elsa before watching the movie LOL! But, yeah, after having watched the movie, I think her voice suits Elsa well.