I debated between the Neptune Acqua Controller 3 and the ReefKeeper 2. I went with the Nepture AC3 because of the Internet Access and greater flexiblity. But, it does take time to use the AC3 effectively, since many feature are not intuitive. Once setup, it does work great.
The other factor is price with the AC3 being considerably more expensive. Neptunes support is very good. I wanted to buy locally, which was the main consideration for the ReefKeeper 2, but it has substantially less features that were important to me.