Wynne
its a great course and I would recommend it, as far as membership after the first year no real benefit to you or your customers.
They will show you the right way to clean wool then you can forget that and do what works in the real world.
Woolsafe products will keep the "feel" of a wool carpet most people cant tell the difference and dont care for their carpets how they should so is it really worth it?
The benefit is to you if you join, all knowledge is good and useful, so it worth going.
Respect
Ian Harper