I've had my '97 9k Aero since Oct 2001, had 74,000miles when I bought it and it now has 166,000.
It was regularly serviced by Haymill in Farnham common up until a couple of years ago, but as the dealer has now changed hands (Hughes) they are crap.
The only show stopper in 11 years was the hydraulic clutch line bursting.. in the middle of the Hanger Lane roundabout.
I've replaced 3 of the central locking actuators, DI cassette, water pump, fuel pump, head gasket (had already had one at 55,000miles) and a few vacuum hoses etc.
I tend to driver fairly quickly and was regularly getting around 27-28mpg, but recently I was on a 2day week so became Driving Miss Daisy, 38mpg!
Despite the age it still makes me smile when the go pedal is pushed hard. Although as everyone I know is now on much newer diesel cars it's getting very hard to justify my crap mpg. The only thing that has stopped me replacing it (only for economic reasons) is the cost of another car.
I play in a band and the Aero is regularly full to capacity with gear but it takes it in it's stride.
It's fast, comfortable, pretty well equipped for it's age and doesn't cost too much to run considering.
All my previous cars had lower mileage and were newer, and they were all less reliable.