*"Using C4D with the tools mentioned above works very well and is easy to use. No horrorstories so far :)"

*I've been using Poser since Poser 3.  And people are forever accusing me of having left Poser, for a Modeler, whenever I have morph related trouble.  

Poser has been utilizing .OBJ technology from Discreet Maya, but Poser's native Figure geometry is .CR2

The bottom line is that there are no modelers prepared for native poser files.  Carrara is Poser's eldest sibling.  Carrara( and I think one other modeler) can import a .CR2, but then that's it.  There are no modelers that can export a .CR2!

From the get go, you are working on borrowed time.  Sure it works, with $ and/or time, but I view my Poser budget and learning curve as enough.  

Maybe if you are really into creating props like clothing. buildings, airplanes, ships, etc. then  having a Modeler on your computer would be like a need for Photoshop; but to and from Poser I do'nt see a modeler as such a hot idea.  Someday Poser will pick up this technology, and then I'd be just as well off to have stuck to learning Poser.