The only effects I've had from vaping have been all good ones. My blood pressure is down, my heart rate is down, my oxygen saturation is up to 98% as opposed to 92% when I was smoking. I can breathe easily and don't cough up a lung every morning. If I didn't have a really bad back, I'd be good to go.
But hear this, my third cousin was about 60 years old when he quit smoking (about 1995-1996). In the next 5 or more years, he then developed emphysema, which got worse over time. Then in 2007-ish, he got a cancer on his lower gum, had radiation which took a huge toll on him, and he passed away in 2009. Never vaped.
My mother stopped smoking when she was 61. She died with a tumor in her lung in 1999 at age 81. Technically, it was Non-Hodgkin's Lymphoma, but it presented as a lung cancer. She didn't vape, either.
So I'm saying...as vapers, in our years to come if we develop some illness or disease, you KNOW they're going to blame it on vaping, when there is no actual guarantee that quitting smoking will magically eliminate the possibility of dying from smoke-related causes. Smoking seems to lay a foundation for troubles down the road for many people.
I'll choose vaping, thanks!