Metahumans is in its infant stages as of now but already we have an entire human setup with materials, textures, Dynamic hair and a full blown skeleton and rig for body and face. To set something up like this from scratch could take well over a month or more . You can create a massive library of metahumans including LOD,s in no time and then take them from Bridge and animate them right out the box using hand or motion capture or even AI. Its truly the closest we have to bringing a realistic human from scratch into a project in less then an hour. Remember this will grow. Its a baby right now and it is incredible. You can also take these characters into a 3D software and use them as a base for new clothing, Hair or even sculpting an entirely new character, creature etc. Just mod the setup a bit and you have an entirely unique figure that just works… Pipeline is important but for someone like myself who creates characters and animates a lot. This I find mind blowing:)