yes the UK is only one model and for ATC its not been that bad looking from the outside but then compared to most privatisations its still fairly early days compared say to railways.
I wasn't suggesting it doesnt work per se but the UK privatisation model in general is not a good one ; once the gloss wears off the focus on customers disappears in favour of shareholder value.
There are a number of Canadian models for state realted enterprises that you seem to get to work quite well compared to other areas of the world so I am not surprised ATC seems to work well
PB