OK, I did my HIIT this afternoon and I both hate it and love it.
I stretched and did some light cardio to warm up then started Imax2: Interval #4 x2, int #5 x2, int #7 x2, int #8 x2 and then (you won't believe it) int #9 x 6!! I just kept rewinding, doing jumping jacks and would start again...