I was going to do a little write-up about why to use Poser - and Poser Fusion - along with your favorite 3D app, but then I ran into this excellent tutorial by Mark Bremmer (See Link), who spells it out far better than I ever could.

You can use all of your Poser compliant content library, along with their morph dials, within Poser with seamless access inside your 3D app, including 3DS Max, Maya, Cinema4D, Lightwave, Vue, Shade3D, and possibly others.

For Daz specific contents, the FBX export from Daz Studio works also just fine most of the times, if you are willing to pay the price of a simple export/import.

BTW, most of the JCM/FBM dials in Carrara never worked for me, especially for clothing items.