How safe is it to inhale an e-cigarette?

I would consider myself a smoker. The first cigarette I picked up was when I was around the age of 6. Since then, I’ve smoked on and off a cycle of long-term, short-term, and ex-smoking. This time, I went almost six months without smoking until yesterday when I bought an e-cigarette starter kit.

The reason why I stopped smoking almost six months ago is due to health reasons (among other issues I won’t explain here).

I’ve read different articles on smoking e-cigarettes, including this one.

There are two subpoints to this question:

1. Have you ever smoked an e-cigarette? Why?
2. Do you think e-cigarette are as dangerous as smoking regular cigarettes?