I did 6 miles on the ecliptic today. I thought I was going to burn out before mile 4 but I pushed through it! Also nearly burned a hole through my slipper.
It was is 2 spurts so 2 miles and then 4 miles, but all together it was 95 minutes and I burnt around 1000 calories plus some stretches and ab work in the middle.
Today was a good day.