10 minute trainer

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I did a quick search and there wasn't a whole lot to read Wondering if anyone has tried it and if it's worth it?

I'm planning on buying it tonight to give me something to start with. I know I'll do more than the one workout, but I like the idea of being able to squeeze in 10 intense minutes here and there.

I'm fairly out of shape, and don't have the time to dedicate to P90x or one hour workouts.