I've purchased and enjoy using this due to its superior face and expression tracking, but I am not able to use it as a vtuber due to the lack of vrm support. Vrm is the dominant format in use by amateur vtubers who want to use a full 3d model instead of Live2D. Adding vrm support would make Facerig the obvious choice for this market, as its tracking is far better than that of hitogata, 3tene, and Wakaru.