The usefulness of this tape depends on what you're looking for. If you haven't been exercising a lot before pregnancy, this is likely suitable. You'll certainly get a good amount of toning and relaxing-stretching that will make you feel pretty good.
Unlike some reviewers,I didn't mind the fact that the tape uses voice-over, but i found the instructor to be a little too "relaxed" for my taste --that is, she doesn't convey enough energy to get me going. I was a regular exerciser before I got pregnant (pilates and running) and so, I found this tape to not really be enough. If you have time to exercise 2 hours a day, you might combine it with a brisk walk or light run to get a more satisfying workout. But, if you're like me, an hour max is all you can spare. Actually, I haven't touched this tape since getting Leisa Hart's "FitMama". The latter includes yoga along with some fun salsa-dance aerobics, as well as kegels and stretching--it just feels like a more complete, efficient workout.