I am going to say my vote is for an all in one. I have had my Profilux for a few years now. The thing I have been most happy with is upgrades. I can continue to add features to the unit without having to buy another controller to run different things on my system. Like my tunze's, price out a controller for the tunze then price out an auto top up system. And you'll find your not far off the mark of what a Profilux costs. I paid 25 buck for a pump for my auto top off and it is controlled by the profilux. I have had the power go out a few times on me aswell and the computer doesn't loose it's settings. My tunze's are battery backed so thats never been an issue.
But like I said I am very happy with being able to add so many features and save on costs of extra controllers that only do one thing.
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