Not a lot of Profilux supporters. Yes I have to admit that they are expensive (I got mine used)
I'll admit I know nothing about other controllers, but to point out some of the high lights of the Profilux unit
1) simple to use PC interface
2) Online Support
Profilux Support Forum that is top notch
3) Unending expandability
4) 3rd party manufactures of lights, pumps, anything really have been integrated to be driven by Profilux
J