I've always wondered about pose products in general. The name of the app is Poser..that's what you do in it.
Also...I use poses from different characters on one another all the time. For the most part, they're just fine...sometimes a bit of a tweak here and there, and with clothes on, it doesn't matter much if certain areas are screwed up.  And it sounds as if this program still needs tweaks here and there.
Its like when vendors sell pose products and advertis 40 poses...20 right and 20 left...you can do symmetry match in Poser and make a left pose a right and vice versa anyway.

I do buy pose sets, though...also, anything to make it easier is a plus, I guess, and Puppet Master sounds like a pretty decent app, overall.

Humankind has not woven the web of life. We are but one thread within it.
Whatever we do to the web, we do to ourselves. All things are bound together.
All things connect......Chief Seattle, 1854