My layout is still DC controlled,with 2 controllers that allows 4 individual loco's to be controlled individually at any one time.
With simple wiring of the 2 main running lines,the goods yard and the carriage sidings and careful isolation of certain track sections,like in the main station,it is possible to get good prototypical running.
I have a double track main line,a goods yard,a main line station with carriage sidings and hidden sidings to represent the rest of the network,all in an area no longer than 12ft.The layout can be viewed in the layout section thread under GVS and Adelaide.