Hey there. He did therapy from age 3 or 4 until 6 or 7, and he made incredible improvement (he's 9 now.) It was a lot of practicing at home, but the therapist gave us lots of stuff to work on at home. I think the therapy made a big difference in his speech. Though he still has a noticeable stutter at times (I notice it, but I've had friends be surprised when I tell them, cuz they said he sounds just like a regular kid to them.) He is able to communicate clearly with other people, and it doesn't seem to get in his way at all. It mainly flairs up when he's excited or flustered. But he's still young, and the therapy definitely equipped him with tools he'll need as he gets older. So while he might have some stutters here and there during regular conversation. I think he'll be able to control it when he's giving presentations or something similar. The important thing is to be supportive, consistent, and do the home work. Also I found that the improvements came in waves as his speech developed. As his vocabulary expanded sometimes we noticed the stutter returning, but then it evened out as he became more comfortable with the expanded vocabulary. So don't be discouraged if your progress seems to "regress" at times. All the best to you and yours.