Horrid!
Stilted instructor. Annoying music. *This* from the entertainment capital of the world? Why is this on DVD when it doesn't let me skip past all the annoying intros? Instructions are delivered separately from the exercises themselves, and after three of the exercises, I gave up and threw it away. I have taken several pilates classes over the years, and this one is awful.

Just asked my doctor
I bought this tape and was surprised to find that the majority of it took place while lying on one's back. I asked my doctor (this was in Spetember 2004) and she said I should DEFINITELY not use it. So I don't. What a waste of money.

Very good, calm workout
Ok. First of all, the routine is a little boring. So, if you are a fitness nut who used to doing Taebo and spinning, then you may fall asleep. But for most of us pregnant women, I think its great.
I am 4.5 months pregnant and have never been a really committed exerciser, though I am in fairly good shape (or was). I wanted to do Pilates because it is low (no) impact and I don't have to worry about heart rate etc.
This thing about lying on your back really bugs me. First of all, the book is still out on that one. Secondly, you are not on your back for very long at one time before your back up sitting. I certainly find myself sleeping on my back for a longer period of time (in spite of pillows and wedges). Also, she keeps you moving all the time on your back, so I don't see, logically, how you can stop blood flow.
I've only been doing this video a few days and I can feel that my muscles have gotten a workout. I feel great. The first time I did the video my lower back was not terribly comfortable but the second time I had no problems whatsoever.
This is a quick, "easy" workout and I recommend it.

Terrible Pilates Video
I watched this video about 1/2 way through and threw it in the trash. I have been to many pilates and yoga classes over the years and am very familiar with the exercises. As a pilates video by itself it is poor... the background music is not very calming but annoying. And for a pregant woman I would not recommmend following these instructions even modified. I agree 100% with my fellow 1 star reviewers. Don't waste the money or your time.

Worked great for me!
I used this workout throughout my pregnancy and loved it. I was doing Pilates for 6 months or so before I got pregnant so the moves were familiar. Yes this tape is a bit dull when you are in your early months, but trust me, when you are 30+ weeks pregnant, it will not seem so dull any more and the pace is just right. As for those who say you should not exercise on your back after the first trimester, these days the wisdom has changed on that and many doctors say it is fine as long as you feel ok. I used this workout until about 36 weeks and delivered a very healthy baby. My delivery and recovery were both quite easy...not sure how much of that was due to Pilates, but I like to think it helped!