Tae Bo. Any good?

I've only done a Tae Bo workout about 3 times (all in high school on some off day in PE), so I've not been able to make any sort of value judgement of the workout. So, I thought I'd ask you all if any of you had actually used it? Positive buzz? Negative Press? Any words about it?

Thanks to anyone who can give me any insight.

Chuck Norris reccomends the Bowflex