I've got a '96 Discovery since new, and it's seriously been the most reliable car ever for me. I take the Troop out in it in all conditions, in all places, and it's never let us down. Closing in on 200,000 hard miles.
The '63 Rover is a joy to work on and drive, everything is accessible and there are only 10 moving parts on the whole thing (all with different fasteners of course!)
I know lots of people with horror stories, but these aren't Toyotas. They leak. They're quirky and they have personalities. Get a good one, and you've got a lifetime companion.
Get a bad one...... there ain't enough large caliber ammunition in the world to express the frustration!