I keep seeing lots of threads about the 30 day shred leaving people quivering wrecks and thinking 'Hmm, you interest me strangely...'
Before I fork out, will it properly challenge someone who is already reasonably fit? To give an idea - regular speedwork on the treadmill, 4-10 mile cross country runs, can hold the plank for about a minute and a half, 20 or so full press ups before collapse.
I didn't think I was that fit or strong, but I've bought well-reviewed fitness DVDs before (Davina, Nell McAndres) and while I've ached a little after the first go, they haven't felt challenging after that. With Davina, was not even really out of breath!
So should I get it?