what mobo are you using ? and how many free fan sockets does it have on it ?
personally i would only use a fan controller on my antec 1200 if i was to replace all 5 120mm fans that the case came with.
as ive mentioned above, you can mount 2 on the hdd bays, and use the fan sockets on the mobo ( providing you have 2 spare ) and if you have 3 space you can use the side window and have that as an exhaust and use that for the 3rd fan.
so to save money and wire routing i PERSONALLY would not use a fan controller for any additional fans.
but if i did replace the pre installed fans i would get a fan controller
let us know what you decide