There really isn't anything else on the market that I know about that has the features this thing has.
I have this radiator:
I am going to run these 14" Maradyne fans at half speed coming on at 190 and off at 180 and full speed coming on at 200 and off at 190. I still need 3 relays to do this but the on and off temps for both high and low are programmable with the Dakota Digital controller.
I also am going to have the fans go to full speed based on the high side a/c pressure. The Trinary switch from Vintage Air will wire into the Dakota Digital controller to allow this easily.
The features on this thing are really good and I think it has a pretty good reputation from what I've read. I sure wish they designed the looks of the controller better.