Its a fine controller. Does what I need and a bit more. It has fallen by the way side as far as giving priority to it due to the later controllers, but in all honesty it works fine.
Mine's also been working like a champ for years... the only things I'm "missing" from it vs the new version are built-in wifi (I just stuffed an old wireless router under the tank with it - lame, but it works), and more storage for the data log. I love being able to control the tank via the iPhone app!