I've been vaping for 6 years, was a smoker for 40+ years. Just had a chest x-ray and my lungs are clear. Sure it's most,y pure luck tgat those 40 smoking years didn't kill me, but I know vaping has helped in several ways.
My taste has improved, and my teeth are strong. Smokers overlook how all that crap in tobacco rots their teeth. I lost several totally because of smoking. It felt good when my dentist told me she sees nice healthy pink gums now.
I'm sure I'll continue to vape, I simply enjoy it.