Hi. I did the New Speech in Czech Republic in 2015. It is very similar to the one in Poland. After the therapy I was 100% fluent for 1 year and than maybe 99% fluent for the next one. Then I moved to Germany and started to work and everything is gone. ;My stutter is severe in German (but pretty fluent in my mother tounge, thanks to the New Speech) ​ If you can afford this therapy, I would recommend it though. I know people who are very fluent X years after the therapy and also people who failed. But it is still the best speech therapy in middle Europe. In my opinion better than McGuirre Program.