Sorry, that reply of mine came off a little harshly, having re-read it!
Yes, I agree a QB has it's obvious uses, but as intimated by an earlier poster it can be too tempting for some to over-rely on it, hence why I'm staying away from them for the time being at least.
There doesn't appear to be much info available out there right now regarding the syllabus differences, at least any that I can find.