I love Davina's non-pregnancy workout DVDs (they helped me get back in shape after my first baby after I'd almost lost all hope) and was looking for a similar challenge here, but was disappointed. Perhaps I'll appreciate this DVD more as I get into the third trimester and am more exhausted, but at 22 weeks it's just so gentle that I don't feel that it's adding much to the battle of me vs. my spreading hips. (For a more strenous and effective pregnancy workout DVD, see Sharon Marrett-Gregory's Pregnancy and Postnatal Workout -- production quality is low but the exercises are simply magnificent. My pregnancy workout routine is to do the Marrett-Gregory DVD twice a week and Davina once.)
Having said the above, I still gave this video four stars because it's got a lot of good points as well. There are lots of tips during the exercises for movements and positions that will help during labour, which is immensely valuable. And the workout itself is a quite good stretch for pregnant bodies -- it'll keep your muscles from seizing up as you get bigger, but it won't make you sweat. First-time mums should also benefit from the Davina's Tips section, where she gives quite good, honest advice about labour and afterwards.
**Update!** Now that I'm at 37 weeks, I have to report that Davina's pre-natal workout has really come into its own. The Sharon Marrett-Gregory workout started getting a bit too much for me at 32 weeks, and now it's Davina all the way. Davina is IDEAL for the third trimester, when you feel like you can't shift from your chair without the help of a heavy crane, but you want to keep moving so that labour doesn't catch you entirely by surprise. In fact, during my first pregnancy, I was heavily plagued by hand and foot swelling as well as by leg cramps, but have had very little of either this time around. Perhaps it's just because every pregnancy is different, but I'm pretty sure that my addiction to pre-natal workouts this time has been the deciding factor. Davina's exercises may be light, but they're just right. Can't wait to try the post-natal section when the time comes!