The Profilux II looks like the best one in terms of performance and value. I'm strongly considering it at this point myself. The only other one I'm considering is the RK Elite because I prefer the smaller size of the controller over the Profilux which is huge and cumbersome by comparison. But the RKE was really poorly beta tested and continues to have problems. However, the cost of additional components for the Profilux are considerably higher than those of the RKE.
Ultimately though, I think most people value reliability over cost when it comes to buying a controller and the constant need to install firmware upgrades for the RKE scares me a bit.
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