One simple thing.... I want stability...that's all, that means it doesn't crash every ten minutes.
Having all these great capabilities doesn't matter if it won't run for more than a few minutes. I can (and have) leave Daz3D open for weeks and it just works away, Happy and stable as a clam. Even IRay renders then closes down and gets out of the way. If a free product can work this well then I should expect one that costs four hundred flipping bucks to do at least as well.