i set one up as a disply tank at The Animal Shack yesterday (no water just a disply for sale)
the lighting is T5 compact (well thats what they say they are)
the filter, skimmer, heater are all in the back.
the lights have a built in timer and then there is a multi box in the back of the tank so all the plugs are hidden.
so i think as an nano they are awesome and if i get one set up then you will have to come and see itfor your self...