Yes I'm using it now. Hardest part is finding a good model. Make sure its someone you look up to, has lots of clips and speeches that you can access for years to come, and of course exhibits speaking traits you'd like to adopt. My model is probably a surprise but its the WWE wrestler Roman Reigns. In interviews and podcasts he speaks very calmly and steadily with good body language and his movements are very slow and relaxed looking. In wrestling promos he is more fired up but a good example to use for inunciation and being able to speak with passion without getting stuck.