Stealth Grow Cabinet?

Hey trying to to decide between 5ft tall 2 deep 2 wide grow cabinet thats dual chamber or a 5ft tall cab that is 4 ft wide and 2 deep. I like the idea of growing a lot more plants in the 4ft wide cab but it's pretty massive, and more expensive. I can't built this stuff myself.

The 4ft wide box i found on hightimes here; http://www.readysethydro.com/sunrunner Anyone heard of them?

The 2ft wide box i heard about a lot before from these guys; http://www.fullbloomhydroponics.net/earth-cab-max/

I don't know if i like the mylar but its a pretty good price either way.