DM'ing for a highly optimized group, this class doesnt seem way out off line - if at all tame compared to some other options (i.e. Synthesis)
Its flavourfull and playes pretty solid cinematic (using techniques from CotP).
Nonetheless, it proved a ill suited concept for super optimized games, as most class features depend notonly on hitting, but hitting way above ac (which can be hard with i.e only having a 45% hit rate with its best attack or concealment). not triggering the Flair will impact the class Massivly.
the magic sphere using Archetype can clearly negate many of those problems by using selfimprovement sphere Effekts and can Provide the classes strenghts with greater ease.
all in all i like the class, though it can be unreliable At Times - in low optimized groups this class will most likely outperform most of the other martial core options, though most Systems do that if i'm honest.