I think he's pretty entertaining when he lets himself kick. His fights that he kicks regularly in have always been pretty fun (like against Peter Graham and Eric Smith; even the Godbeer fight started getting fun once Kongo started using his legs.) It's like he doesn't kick a lot of the time because he's really worried about getting taken down, though, but his punching game really isn't up to par with his kicks, and he still doesn't try to kick opponents he'd be perfectly safe to, like Augusto Sakai or even Roy Nelson. So in those fights, he'll try to punch and either get rocked or have to resort to clinching and leg-riding his opponents en route to a decision. He has all that Savate experience, but you never see it.
His clinch game's pretty interesting if you're a fan of that part of the sport, though. He's developed a real skill with sneaking his way into getting underhooks from the outside, and he has real good head-control. Not the most exciting stuff, but interesting.
Including beating Mitrione?