1. Not having to worry about driving anywhere
2. Not having to wipe down my wine splashes all over my office at home
3. Waking up feeling refreshed every morning
4. Changing my belly from an alcohol holding tank to a gas tank for a love machine!
5. Building some trust back up with my wife
Those are pretty darn close to my five.
I'll add:
6. Not having to listen to somebody telling you that you've had too much to drink.
7. Being able to go to sleep at night and stay asleep.
8. Gaining respect.
9. Becoming friends with your liver.
10. Learning how to eat certain foods without a glass of wine or sake to wash it down.