>>936083886
1: it's a plug-in that adds characters and/or concepts that aren't in the base model. Useful for getting specific characters to be on-model and in-costume or getting very specific poses, sexual acts, art styles, etc.
2: No. Unless by "good outputs" you mean a specific character, art style, etc
3: ntrMixIllustrious (pic), ReallyBigLust, and Flux