Ok, so looking at the level break down and the feat list (from my first spoiler post), you essentially have the possibility of getting lots of attacks at 8th level once both of your Kukri weapons are made into Apptitude weapons.
At 7th level, only one of them is an Apptitude weapon so you wouldn't be able to be, effectively, "wielding a light mace in each hand" for the Lightning Mace feat.
Of course, at 9th level, this definitely jumps up to a "pretty good" possibility as you gain the Improved Critical[Kukri] feat, and at 10th level, even better, as you've gained the 4th level of Disciple of Dispater giving you the first touch of the Iron Power class ability, increasing your attack and damage rolls and doubling your crit range as if your weapon is Keen (but specifically stating that it stacks with the Improved Crit feat).
So at 9th, your crit range is 15-20, which is a 30% chance to threaten a crit. At 10th, your crit range is 12-20, which is a 45% chance to threaten a crit.
Not bad. Of course, your damage out put is kind meh at this point, so if you go up against something that has damage reduction, you might have some issues unless someone can buff your Str a little bit (or magically enhance your weapon damage a bit).
Of course, your choices of magical items, or when you gain them, may differ from mine, which may get you better damage by this point. I, personally, like to generally try to be self sufficient as much as possible (hence the bedroll and endless ration stuff). But if that never is an issue or you don't care about that, more power to you.
I kinda like to view this guy as a mini-Dispater. He is generally aloof, fully confident in his own abilities, and interested in getting others into contracts or deals that, essentially, make them serve him. In combat, especially at later levels, I could see this guy simply standing in the background near the casters with his arms folded watching the party deal with an encounter. At least, until he saw a possible worthy foe or it seemed like the tide of battle was turning against the party's favor. At which point, he'd pull his Kukris, dive into battle, and in a bloody whirlwind of blades, slaughter foes left and right (or take down the main baddy in the encounter in one round). Think about it, a round is 6 seconds. This guy pulls off a hundred or more attacks in 6 seconds!!! That would be like getting a thousand paper cuts that do quite a bit more than just barely slice your skin.
Or, better, in an encounter where there is the main "captain"/baddy with a bunch of minions, he pulls off the "counting coup". With a smirk, he charges the main baddy with his Kukris, but instead of stabbing him, he simply slaps him with the flats of the blades a hundred or more times. Talk about insult! Naturally the baddy will want to clobber him (go go Improved Combat Expertise for very nice ac plus the Ironskin class ability). After unsuccessfully doing practically anything to him, the next round this guy yawns, stabs the main baddy once, causing him to explode in gore, and then casually looks around at the baddy's minions. I know there generally isn't really a direct rule on a possible morale check, but I think a DM could be reasonably convinced that if a character did this, all minions, who saw their "boss" get humiliated and then slaughtered with one real attack, would make Will saves or flee/surrender.
