Main questions I have on this:

1. Can participants correlate inputs and outputs (it seems so after reading through)?
2. How are Sybil attacks detected and prevented so that a single party is not a participant in the majority/all mixes?
3. How will address re-use, toxic change inclusion, and remixing with the same parties be prevented?
4. What is the clearest advantage of this over something like Samourai's Whirlpool?