IMHO Fundies is a great course, got loads out of it. However, it's a course for a certain point in your diving career. It's perfectly possible to gain the same experience and skills through other routes which @Alex Denny may well have travelled. Whilst GUE trained divers are of a high standard, there's plenty of non-GUE divers who are just as good. Also, it has to be said, that GUE is a specialist organisation, focussing on specific types of diving: not sidemount, general purpose CCR, solo diving, uk caving, and do very few recreational level courses.