I have one and it works well only in a very quiet environment. I bought the small talk from Casafuturatech.com and it's much more usable in different environments. You may be able to get one free from your state as well. The small talk is bigger, and takes wired accessories. A big part of the Speecheasy was that no one could see it. With everyone wearing headphones and Bluetooths now the opportunity for embarrassment is much less. The small talk allows a lower pitch daf which I find more effective. The Speecheasy is hearing aid sized so the speaker has a higher pitched tinny sound. It works, but not as well. The small talk also lets you use headphones or earbuds in both ears which works best for me. I find that I need to ONLY hear the delayed audio feedback for best results. The small talk also has user adjustable settings. The Speecheasy has to be taken to someone that has the software to change settings. At least that's how it was when I got mine. That's been about fifteen years ago now. If I was to buy a device I'd get the small talk and not the Speecheasy. I agree with the other comments to try the apps first. I have all of them and some work well. Make sure to use wired headphones that put the microphone near your mouth. Keeping background noise out of the microphone is key to the daf working. I use a throat microphone at work, it's a loud foundry. Use wired headphones as the Bluetooth adds latency that makes the delay too long. If the apps seem to work try to get the small talk through your state program. I can't think of the name for it, but the casafutura site has all the info. The casafutura guy is a stutterer and has built some impressive machines. I've called him before for service (new battery) and he was great. I hope this helps.