I have to say I was skeptical at first I am a teacher of students at the secondary level and the Speech support sent me a link. I started doing the day by day instructions using the teen book and lessons about two weeks ago with a 16 year old in the classroom. She is new to my classroom but basically came with no communication system, no hand use . She seemed liked she had so much more to say so I decided to give it a try. Much to my surprise she was able to give me a consistent yes pretty quickly I was not sure but she looked straight at me when I presented the choices. At first I thought I was just reading into it but like the website said go with your gut and I did! We had our first Hello conversation the next day she asked me how I was doing and responded on cue we are moving through the daily activities and I am pleasantly surprised at her progress. My SLP who originally sent me the link was also pretty shocked when she came in last week to see her communicate with me. Thank you so much for posting this information!