€2.99 a month instead of €4.99, cancel whenever, nothing charged until the first cohort starts. Circles are capped at eight, so places go in the order people join.
You lock the €2.99 rate in now and keep it for as long as you stay; the price goes to €4.99 after the first cohort. Your card is only charged on the day the programme starts. Join now and you take the first places in the opening cohort — nothing is charged until it starts.
Leave your email and you're on the list — first refusal on the opening cohort, at the early-bird rate, before it goes to anyone else.