Trying to figure out what this VP software review means

I read this review about a video poker training application created by Bob Dancer. Downloaded the trial and so far I like the software but stumbled upon this review and am wondering if there is something wrong with the trainer. Below is the review.

It's an OK game and will teach you the basics of playing poker slots. But, it's "hints/suggested plays" are totally at odds with how machines play in reality. It doesn't take into account take back/pay back nor does it consider pay-out percentages

Excuse my ignorance but what is take back and how does the software neglect to include this?

Thank you :)

The person putting in the review was probably Rob Singer or one of his minions, who have an alternate view of how VP poker works.

I suspect any product by Bob Dancer is solid.