I said this in one of the GDTs, but will say again how much watching him play reminds me of old, former great soccer players like Dennis Bergkamp and Carlos Valdarrama at age 36-37, where they seemed to jog around completely uselessly and slower than molasses for most of game and you'd wonder why they were there, and then they'd pull one moment of pure genius out of the bag at a key point.
Vanek looks like crap 95% of the time but once or twice/game shows the skills that at one point made him arguably the most dangerous sniper in the NHL outside of Ovechkin.
As a fan, he's fun to watch on that account and adds some scoring depth in sheltered minutes. If I was a GM of a playoff team, would I trade anything significant to add this player to my roster? Absolutely not.