I want to use a program like this when I am in a serious endurance training phase. There are some big races (road 10k, obstacle course race, marathon) towards the end of this year and beginning of next year where I will have to put in a good amount of race specific training. But I don't want to lose strength and think that at least maintaining my strength would help my endurance.
For now I'm just doing base aerobic training and a modified starting strength (A: front squats, overhead press, deadlifts/hang cleans (alternate); B: front squats, bench press, pull-ups/chin-ups) in order to build my aerobic base and strength base.
I'll post my thoughts on this after I give it a go.