I did the NCCA course in October last year, about 25% of the delegates were experienced, some very much so, about 75% either never cleaned carpets or v little experienced(like me).
Would be interested to know how many were still carpet cleaners!
Not been on the Ashby course so cannot comment, I wanted to avoid being sold specific manufacturers equipment.
Without the NCCA course I would not have the confidence to go out and seek work, and certainly would not still be active. Joining the NCCA has more than paid for itself in terms of referrrals from their website.