I must admit that it's pretty neat. I especially like the way the water bath circulates.
I'm surprised they choose to agitate with air... I know it's often done for sheet film in dip and dunk lines but they usually use nitrogen to avoid oxidation of the chems. Personally, I would have gone for a magnetic agitator.
It's also a nice way to use an Arduino microcontroller.
But still, it does look extra nice, a bit like some high-end stereo or something.