It is very impressive for sure, I wonder if it as lighting so that you can light up all the skyscrapers and trams etc... when its dark or dusk?
As for the controller, I'm sure you could add a small shelf below the edge of the main board so it would be out of sight.
I'm also surprised the guy hasn't added some of the Tomix motorised bus system to the layout so he has got buses running around the city also. After all they are N scale also and depending on how you set them up they will not only follow a specified route (without any slots that is) but can be made to observe junctions, pull up at bus stops etc... I will likely do this for any city part I make for my layout when its up and running as I do have a couple of the bus starter sets and additional buses that I bought a few years back
As for the controller, I'm sure you could add a small shelf below the edge of the main board so it would be out of sight.
I'm also surprised the guy hasn't added some of the Tomix motorised bus system to the layout so he has got buses running around the city also. After all they are N scale also and depending on how you set them up they will not only follow a specified route (without any slots that is) but can be made to observe junctions, pull up at bus stops etc... I will likely do this for any city part I make for my layout when its up and running as I do have a couple of the bus starter sets and additional buses that I bought a few years back
Happily collecting things all my life... 
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