Hi Beaches,
The Fixhepc buyers club arranges testing of each members ordered batch of drugs prior to arranging for them to be encapsulated by a compounding chemist.
No batches have failed testing to my knowledge. If they did I assume the policy would be the same as Dr Freeman told his very first patient and they would be thrown in the bin.
There have been quite a lot of people in treatment but due to the newness only a few have completed so far.
As per the Sunrise article expectation of cure is better than 95% but will vary a bit depending on things like genotype, length of infection, level of fibrosis, etc.
I'm also not sure about resistance or numbers treated. Hopefully someone else can answer those questions here.