imo the fan is as bad as the club but for another reasons i experianced.
it can be blocked very easy . it is mostly useless against Shields and powerless against counter + shield.
it gets thrown all the time very fast. (faster and more often than the Leek or Roquet) (huge Problem if you have 2 weapons or more, in my case it was Fan and Flail)
it can be dodged as easily as the Glaive...
but it has some positive aspects like:
its speed is crazy , it increases your speed up to 250% initiative (2.5 attacks) it is faster than Knife.
its multi hits is at least as good as the knife , but less than the Leek.
it can be scary combined with BoL and sang-chaud (but the risk of the Fan getting thrown is allways a problem)