How do you Spot a Five Star Language Tutor?

Imagine that you’re headed for to the South of France with your wife, and you want to improve your French conversation. But then, a tutor insists that you study Tartuffe, the French XVIIIth century play by the classical dramaturgist Molière. This play certainly is a wonderful piece of literature. But do you want to study it now, three weeks before flying to Nice?