Clients want to know two things: what improvement looks like and how fast it happens. Real progress in American English pronunciation is built on motor learning, auditory discrimination, and measurable feedback — and it applies not only to individual sounds, but also to stress, rhythm, pausing, and intonation. With the right system, clients become easier to understand within weeks, sound-accurate in single words quickly, and conversation-fluid within a few months. The accent stays, the friction goes, and clarity becomes the new default.