To be fair, both programs have files the other cannot read. I am only a newbie at this but Daz cannot read the material files Poser uses because it does not have a material room. Poser uses PZ3 scene files Studio can't read and Studio saves its scene files with its own extension. So no wonder Poser can't read it. Except for areas each has developed that the other doesn't use of some reason, all the other stuff seems to work just fine. As for the freebies, it all depends on what they are. But plenty of them work just fine. It sure makes you pay more attention to file types and how they are used. Dynamic clothes are not part of Studio yet, but many people like the DS way of posing and lighting better. Since it is a free program it is not hard to find out the differences for yourself. Depending what I am doing , I will certainly be using both for a while. Both allow you save your render as an image in many formats which means both are recognized in Photoshop and other image editing software.