Hi Kim
Well, I wrote one of those reviews, so this may be a re-hash of what you've already read. I like this video a lot, but be warned that it is very different from one of Cathe's strength training videos and will give you very different benefits and results than Cathe's. (And I love Cathe's strength videos, especially the PS series, from which I've gotten wonderful results, thank you thank you, Cathe Friedrich.)
SB&F is an hour long and you use 8-pound dumbbells for most of it -- that right there tells you that you won't be seeing much muscle growth from this workout. It goes by fast, because she uses a real variety of interesting moves. You'll get really good at doing bicep curls while you're holding a one-legged squat position. The ab section is excellent too.
I look at this as an enjoyable workout, a nice change from heavy weights, and a good way to develop the smaller stabilizing muscles that you need in sports and everyday living -- that whole "functional fitness" thing. I feel like doing this workout regularly will help me grow stronger, be more coordinated and protect me from injury.
I think it's an excellent workout, but you have to know what to expect or you might not like the emphasis on lighter weights and balancing moves.
I hope this helps. You might get a greater variety of opinions on the videofitness web site.
Daphne