I'm comparing each expression side by side and really, even if I wanted to, there's no way I'd say the new model isn't better. It simply exceeds the quality of the previous one, technically.
On the old model she had a special stare (such a characteristic "wtf" / "oh shit" / "I'm lost" constant look), which I largely believe was given by how technologically outdated it was becoming. In fact if you compare the expressions (old model), you will notice that the eyes and that stare hardly change from one to the other. Whether happy, angry or sad, 'that stare' is still there.
But the new model's expressions are now more characteristic, and as we saw at the end of the last stream, it gives her much more dynamism and expressiveness. The downside is that it "lost" that constant characteristic gaze it had, or rather, it's no longer the default. Look picrel, I feel it's still there, it's just not constant anymore (now you would have to find that expression rather than just seeing it all the time). Having been exposed for so long to mostly one type of expression makes it strange when we are exposed to others.
As for me, I love it, it gives her a lot more tools to make the stream more... interactive?. I noticed it with the ears, now every time she gets surprised or excited and raises her eyebrows (or opening her eyes a lot), her ears go up, which makes me notice and think about her real expression. Before, you could hardly intuit where her head was pointing, let alone what she was looking at.
Reading what I wrote makes me think I'm throwing too much shit at the old model's expressiveness, but that's not what I want to convey. It was expressive and lovely in its own way but, in my opinion, this change is for the better. It will take me some time to get used to it while I "explore" and pay attention to this new range of things the new one has to offer.
tldr: I like both models in their own way and while I am more sentimentally attached to the old one, I feel that the new one has more to offer, more "quirks" to be attached to in the long run.
true tldr: me like new thing
