Much effort for somehow very little added value ..

But in addition to the normal "board" is still a fan below the ironing board installed. The one can make on running forward and backward, ie blowing and sucking.

Do you need something? Well ... actually no, unless:
a) to iron long / much and with much steam
Then the fan can suck the steam better and so provide a drier Ironing Board Cover

b) the ironing board cover is wrinkled (like here).
Then the fan can be used to inflate the terms, and make it wrinkle free.

As I said, the ironing board cover is on quite wrinkly and is not smooth pull. Is probably due to the specific reference for this board with a fan who has slight oversize. When ironing tables without fan of reference is flush. In addition, the reference already open seams had to unpack on what may happen, but not just enjoy given the price.

So my humble opinion, the fan in certain situations, be useful - but for most it will not be worth the extra cost.