If all you're interrested in is a virtual Barbie doll you can make pretty pictures with, then V4 is the mesh for you.

If you're looking for a mesh that can bend like a human being and looks like a realistic woman, then you better look elsewhere or be prepared to do a lot of additional work.

I'm not denying that V4 HAS a few improvements over V3.
But that doesn't make her "good".
Just a bit less "bad"

She's a far cry from what is possible in Poser today, and what I expected from DAZ.

Why did they bother to scan real persons when the result looks like a toon anyway ?
Why were realistic joints less important than easy to make clothing ?

If V4 is good enough for your needs, great.  Please enjoy her.

But some of us have a bit higher standards.

And no smartass remaks or downright rudeness will diminish her flaws and obvious shortcomings if you work with her.

And wether one uses her or not, she WILL be the new #1 mesh sooner or later.
And that means that 99% of the future merchandise or freebies will be made for her, so everyone will be affected.

And M4 will inherit her shortcomings, too, and so will A4.
And all the other DAZ meshes that will be based on her.

As I already said: Everybody gets the mesh he deserves.