Ok. since you asked.
I'm not really into the big production stuff that sounds like a cinema or that it was done in a full-scale production studio. Sounds as if this would be terrific for that.
I do like the guitar sounds, but they were already great in previous models.
I still don't like the size of the case, though weight isn't bad.
They are not telling us in the demos whether they are using audio drums or midi. The ones that sound really good are probably audio. If they are midi, then there are improvements. If they are audio, then there probably aren't enough of them and new ones probably can't be easily obtained or created. I'm still not hearing the realism of Ketron, Roland, Korg, as far as listening to a live combo-type band. In all fairness, maybe they just aren't demoing it in that manner.
I think the vocal hits or yells are hokey and not really usable much in many real situations. At least not in my real situations. I didn't use the ones on Audya either. As far as the lead-type vocal sounds, I still much prefer the triple-touch function that Roland uses, where you can switch between three options via varying key pressure. I'm hoping we are only seeing and hearing the tip of the iceberg and that are other great things to be discovered.
The double midi/audio player is old news, and I don't use the one I have. DJs might. And they might use the voice cancel feature, although I have yet to see one that works very well. If you are doing DJ stuff primarily there are far better options than an arranger keyboard.
I'm sure the samples that can be loaded are still in a proprietary format.
Multiple line outs are nice. They may be catching up with Ketron and Korg. They make it sound ground-breaking. It's not.
Still no facility for adding light-weight, low-cost foot controller with multiple functions, as far as I can see.
It does sound really great, if you want to hear a polished song that sounds as if it were done in a big studio, yet retain live control of everything. It would be amazing in a studio environment and probably put lots of mediocre pickers out of work. However, the studios are not going to do that, because they look down their noses at arrangers.
I don't think it sounds that much different from previous Yamahas, but there is absolutely no fair way to evaluate this or any other arranger without sitting down and playing it. THEN if it blows your mind, it means something.
Just an opinion of a tired old guy.
DonM