You do get charged immediately for this.
We're really starting to get pedantic about "best," "crust," "reverse," etc. Ultimately, sous-vide is just a damn easy way to get a fantastically-cooked cut of meat (among other dishes).
More information isn't pedantry, and neither is refuting unproven claims.
I enjoy sous-vide. In fact, I still use my Anova kickstarter circulator.