Well, he is one of the better players in the Belgian league, but that's not saying much. I've seen quite a lot of him over the past few seasons and I'm inclined to think he's good enough to play in a stronger competition, but probably not for one of the top teams.
His situation is pretty comparable to Onyewu's a while back if you ask me: one of the better players in the league, much interest from foreign teams but deals always fall through, ends up leaving on a freebie.