I really hope there will not be any more controls that this. Just SSS mode checkbox should go away, so there should actually be less. I actually like this SSS a lot as it's not being a complete hell to set up. That being said, SSS in CoronaMTL is just for basic SSS effects, like fruits, food, marble, juice, milk, honey and so on.For complex skin, i would think there will be dedicated shader exactly like MR or Vray have. But even with this simple SSS mode, i've been actually able to create some reasonably looking skin: https://forum.corona-renderer.com/index.php/topic,4756.msg32363.html#msg32363It would look even more realistic if i had proper glossiness map :)
You need access to the daily builds to use this stuff. It's not available in A7.1