Well Daz3d is a company who has a product called Daz Studio that supports the selling of Daz3d’s digital art assets such as procedural character models as well as digital sets.
Being an animator I’ve been using Daz Studio for years just to have access to top notch AAA grade characters to play with 
Daz Studio is a razor/razor blade program where the app is free in an effort to sell Daz3d products just like giving the razor away for free to sell the blades.
Daz Studio by it’s self is a very powerful 3d visualization tool that has been, and is being used, for years in other production environments and has only recently made an appearance with in the video game environment, in this case UE4, as Unreal 4 is the first game engine that does not place limitations on what and how much can be imported and took a huge jump in 4.15 so what it can and will do is still to be explored taking into consideration the UE4 is gaining popularity as to other uses besides video games.
As a creativity tool you can’t compare it to anything else as it does a lot of everything and now that it also includes Hex2 as well as as GoZ bridge Daz Studio has a use as a production hub that becomes the corner stone app as to feed stuff into the pipeline.
As for character requirements once again you can’t compare the output what Maya/Max/Blender/etc can produce as the Genesis frame work, which is what Daz Studio uses or character design requirements would be more of a replacement by comparison to the Epic base rig but with features that you only find in a AAA class character.
Does Genesis have morphs? Sure thousands
Are the rigs good? Yuper and includes cluster joints for facial animations
I’m curious how Daz would fare
The question is how soon can Unreal 4 catch up with what Daz Studio and Genesis has already been doing for years (risking sounding like an ad)