I'm not sure if it is the writing, the acting, or the combination of each, but Assane comes off as sort of an arrogant jerk .. not a sophisticated gentleman thief. I think they were trying for charming, suave and debonair, but he seems more like a ruthless, manipulative liar.
Assane creeping around in Claire's apartment, watching her and her boyfriend asleep in bed - that's not a good look.
I'm not sure how Assane is hanging around, carefree, in Paris cafes and restaurants. (In episode 8) In the last episode, he escaped police custody and is now a known thief and criminal. And for