Moment of indulgence my ass.
I will give it a 6 because it was cleanly animated. But the tagline at the end ruins an otherwise effective (if trite and cliche) PSA.
Don't ruin a lifetime of happiness for a moment of indulgence? Smoking has given me a lifetime of happiness. Spending $20,000 to see my kid get married to a guy who has a 50% chance of divorcing her? Sounds much more like a momentary indulgence to me.
Until you've kicked a pack-a-day habit, spare us the lectures. You obviously don't get it.