Spin recovery is a requirement, but you are not required to teach it therefore do not have to patter through one in the test.
Back to the topic:
A good Flight Instructor school should,
1. Have allocated resources both Staff and A/C, committed to the course, ie not disappearing on charters, ect.
2. Have a qualified ground instructor, ie one who knows what the heck it is there trying to teach.
3. More than competent Gde 1 staff who are patient and love to pass on the required knowledge.
To be Fair:
A good FIR candidate should,
1. Do the required revision before starting the course, ie read the Day VFR syllabus, revise CPL theory and research different books other than Trevor thom and Bob Tait. These days you need more than that level to get a gde3.
2. Not be a, Ive got the cash I'll do this for fun and not give a hoot person, The industry is full of them and it actuallly drives wages down, - go get a charter job and be done with it.
3. Read CASA's Authorised Testing Officers MAnual, downloadable from there website. ie HAve an idea of what will be required of you at the end of the course.