I too was a founding user of the previous MacSpeech product, iListen, which I have used since it's inception and with every iteration. The advantage of that product was that is was phoneme based. Whether this product is or not is unclear to me. iListen remains on my hard drive and I continue to use it on a daily basis. Here's why: This new product Dictate is a mixed blessing with both good and bad features. Certainly the recognition is much, much, much faster and accuracy, with caveats, generally improved very considerably. Also the training required for voice recognition is markedly reduced on the previous product. So what is the downside? Surprisingly, given the previous product's excellent correction mode, wherein errors could be corrected within the audio file of the program and new vocabulary learnt, there is none in this product. There is also no ability to utilise a specialised dictionary, say medical or legal, or indeed any field where there exists uncommon or technical words, or jargon. Until this feature is enabled or restored it will have little use for complex tasks. If your task is simple however, plain vanilla business letters, this will work admirably for you. Fittingly, until one is able to teach the program to out put per se rather than "per say" or "person", the expression caveat emptor applies!