I have been using Daz Studio 6 and well it is a bit different. I still use my older versions of Daz Studio because I have invested heavily in plugs/tools for those versions. If I just want to render basic stuff with no special effects I use Daz Studio 6.  Never got on the premier wagon because it just did not interest me.

Daz Studio 6 has AI chat, haven't used it and probably never will. As long as I am able to use the content I have purchased I am not going to complain.

I run Daz Studio 6 and 4 simultaneously. I create whatever I want with Daz Studio 4  and apply plugins and or affects then export it out to a new name and use the item in Daz Studio 6. Very simply work around.