Last month Kakuzi published the first report on it's operational-level grievance mechanism, which was set up as part of an out-of-court settlement agreement following transnational litigation in the UK: https://tinyurl.com/54xs4488
Kakuzi's OGM is interesting because it is expressly set up to provide reparations for harm, unlike most OGMs, and is committed to a high degree of transparency and third party monitoring.
The report confirms many conclusions I drew from my field research (Aug-Oct).