I own the Ideal Mindset, Decisive Action and Consistent Achievement courses. I find them very useful, and have benefitted from them several times. As a matter of fact, I'm in the midst of starting a new project and so I'm just about to do another round with them. I'll certainly recommend the accelerator if it has the same material as these courses. It's very valuable stuff imho.
To get results from paraliminals, though, it's really important to DO them, that is, not play around with them or use them as an escape from your daily life. My coach enlightened me a bit with regards to this issue when he said that one of the main reasons why people don't get results from their personal development work is that they really just play with it, or use it as an escape. When you sit down to do a paraliminal session, do it with INTENT, have a clear objective, and really expect results, knowing that YOU are the one responsible for them. And use them for something that matters. Something you really care about. THEN you'll get your results.