The resulting cold brew concentrate benefits from pressurized extraction, sure. In side-by-side testing, the results were significantly better than fast cold brew made with an AeroPress. Is the cold brew produced by the Rapid Brewer as complex and sweet and smooth as a 12-hour cold brew? The Rapid Brewer is a fast but blunt instrument, extracting sweetness and full body but not quite all of the flavor. The portion you're using for the Rapid Brewer is also significantly more than you'd need to make the traditional cold brew that involves patience and forethought.