I have done MakeHuman, not nearly as customizable as Daz.
Currently, I use Daz for Character Blocking (making the basic shape of characters and clothes), and then I do any additional sculpting in Blender, and animate/render in blender.
So 4 things about doing this.
~ The default import shader is junk, bugged even, so if you are comfortable with playing with shaders, then you can/should make your own shaders for the skin, eyes, etc. I currently have my own collection for all the body parts and other details (like the cornea), which I am still trying to refine so that I can share it publically.
~ Rigging. The default rig works just fine, as good as any basic rig (for both daz importer and fbx importing). Depending on how much experience you have with making characters in blender, I would recommend tuning the rig to your preferences. I automate a lot of my rigs with various features so that animating isn't tedious. So the rig won't break... almost.
~ In daz, when posing and animating, the rig has a lot of automated behaviors, such as, if you lift the arms high enough eventually the shoulders will rise up instead. This automation is lost no matter what when you import to blender. Second, a lot of movements also have corrective shape keys that are automated in daz. You loose all of the shape keys when you import into blender, so you either have to make your own or live without them (or just the few you need). With daz models, it usually works pretty well if you have a default mesh where you add in all the corrective shape keys, and then you import the character you want and morph your character and skeleton to match the imported character (tricky), you can then have your character with all their corrective shape keys.
~ Lastly, Genitals. They tend to be meshed up, having two meshes and messed up UV's. I have been thinking on making a tutorial for how to fix imported genetals, becaus you have to transfer the uv map of one mesh to another, and cut up teh body and attatch the genitals to that, and then you have a perfect mesh, it is a fair amount of work, a bit advance, but without it having genitals is worthless in blender.
if you want to quickly play with customizable body shapes (female only, faces don't change), you can play with this model,
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which is just the default G8F model with all the Body Diversity morphs turned into shape key sliders you can play with, using this I was able to make an
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like character (not the head) before I started to use daz.
I'm away from my main computer during this winter break so I can't provide images or be able to test thing directly to answer any specific questions.