NSPIRE training courses, reviewed by people who took them

There are plenty of NSPIRE courses for sale — classroom, online, and inspector-certification tracks — and the quality varies like everything else. If you have taken one, review it here: who taught it, what it covered beyond the standards book, and whether your scores or your confidence actually moved. Name names; that is the point of the thread.

Ground rule for this thread: reviews from people who actually sat in the seat, not brochures. A course earns its fee if it changes what your crew does on Monday — the standards are published free, so what you are paying for is judgment, examples, and the instructor's scar tissue. A course that just reads the book aloud at you is a book with a catering bill. If you've taken any NSPIRE course, good or bad — which one, and was it worth the money?