I know this is late to be posted on this thread guys, but consider this:
At higher levels, you should be able to use this feat in conjunction with both vital strike (because it is still technically only one attack and not an actual attack action like vital strike) and other feats like dragon style feats (add half strength to first attack, and later to both attacks when you get dragon ferocity).
You basically get to roll damage dice twice (four times with vital strike, six times with improved, eight with greater) and add quadruple strength, plus double enhancement and other flat bonuses (power attack and devastating strike).
Even worse and more broken: multi-class your master of many styles with brawler fighter archetype for more bonuses to damage and to get the +16 BAB for devastating strike.
THen do this with your gold: take the use magic device skill until you can use wands and get a wand of strong jaw as soon as you can afford it, as well of a wand of enlarge person (or have it casted on you permanently) for unarmed strikes as if you were three sizes larger than you should be.
Finally, at high levels, go kill an ancient golden dragon with one attack... or make your damage non-lethal and just knock it out as a joke. That's what I would do anyway because all of my monk characters are pacifists at heart.
example: my level 20 hungry ghost/master of many styles 12 and brawler 8 does 64d8 +112 with his Tiger claw, power attack, vital strike followed by a free bull rush at +50. this is the most broken thing I have been able to come up with so far.