It is more and more of a love relation with front crawl I've to say. It seems that this stroke does my multiple issues more good that the others strokes even the so advertized backstroke.
I'm training to get comfortable taking two breaths in a row. Two breaths on three strokes do me good on 50 possibly 100m. I'm also learning to do it "on demand" blending it in more standard breathign patern.
I'm short with 3 strokes on breath on more than a couple 50m laps, I may move the 2 breaths followed by two or this strokes.
Still experimeting but it may work for me, I did not put enough times in my previous trials I think.