Pretty lousy...

There are no verbal instructions so you have to look at the screen the whole time. Its not always easy to tell what the model is doing - again, lack of verbal clarifications are a problem. Some poses are shown incorrectly, e.g knees going past toes in a lunge which can lead to knee injury. And the poses are only held for a few seconds, not long enough to feel a benefit.

Amiki4423 about Prenatal Yoga Pro - Exercise, v3.3