I bought this car with 100k on it and am closing in on 200k. By far the best feature is its engine, powerful and rock solid. But my Legend has had a number of sensor/electronic failures, many of which are listed in forums as common failures. Door alarm is erratic, variable speed sensor, interior trunk opener, master window controller, brake sensor, master brake cylinder and A/C have gone out. Both front CV joints have been replaced and the rear brake calipers locked up. I'm thinking of calling it quits on my Legend, but its too old and has no value left.
The 3.2 Type 2 NSX engine is a great performer.
Things go out with age, but it look like Acura engineers put all there time into designing a great engine and neglected the rest of the car.