I had a friend come from overseas to convert to an Australian ATPL. He was treated quite poorly by Ad Astral. The Duchess they use was unservicable twice, the last occasion for around four days. The testing officer they used then was busy on a 1900 ground school. My friend who was on leave,was told to wait another two weeks. Consequently, no MECIR, no ATPL during his leave but still a hefty bill for his trainning to date.
They would not cross hire another Twin nor use another instructor/ Testing Officer.
This was in late 2005. I have heard numerous good reports since, perhaps this was one off bad experience.
Cheers
RC