Almost 154,000+ miles on my original tranny

I get mine serviced every 15,000 miles. I did have to replace the torque converter adn get a rebuild at 51K miles though. I had a front end accident where the line from the tranny to the radiator had split then I drove the car up a driveway to get it off the road, just 20 feet with no fluid did it in

Fortunately it was covered with the rest of the repairs. Other than that though I haven;t had any more problems. As long as you are good to it, it should be good to you