If this legitimately allows you to function well (not just survive) with so little sleep that would be amazing. I sort of took an involuntary crash course in a similar sleep cycle for the first 3 months after my daughter was born, but I could not recommend it to anyone.
I would definitely be curious about impact on recovery/growth etc. as well as cognitive function over the long term. Please throw up any decent info/personal experiences you turn up.
I, for one, am always wanting more time for work, family, study, training, leisure etc, etc and can definitely see the appeal of freeing up time spent sleeping for other things, but not at the expense of health/vitality.