As a regular user I see rail privatisation as successful.
In fact the only failure is water, as it was just privitised regional monopolies with no competition.
Electicty/gas? Tell me you’d be happy with British Gas when you aren’t allowed to use Octopus
Phone? Of course that’s a success, both mobile and also wires.
Airline? Freight?
Busses are too fragmented in regional areas, but the services tend to be better than they were under council run.