Bought this as not prepared to fork out for a gym membership as I know I'll never go.
Did it today, thought the pump bit of it was not too bad... 30 minutes, light sweat little bit puffed, so sat down and had a flick through the dvd extras
Then once cooled down jumped up to make some lunch
And my legs collapsed, like jelly... even now they feel... unreliable like after 14 double vodkas type of thing