It's a great setting and some old chuch features worth a visit. You can belive the burning bush story and the rest if you like, and that may make a difference. Otherwise, watching the true believers was a good part of the fun. It's a long way to St. Catherine's from Sharm el Sheik, and you have to weigh the time and effort against the payoff. I'm glad I went. Get there early because the place closes down at noon.