Questions - Need some input

I want to set up a semi-constant water change system and I was originally going to go with the normal Litermeter setup that everyone seems to use, but then I found this: http://www.genesisreefsystems.com/.

I was just curious if anyone has had a chance to see this setup in person or anything. It seems like it is a fairly new product so I don't know how many units are actually in use yet, but it seems pretty cool. I am just looking for opinions on this setup really. I don't mind buying ...