I would imagine, with no real evidence to support me, that nicotine withdrawl with be much easier than nicotine, MAOI's, CO, etc. withdrawl. That other stuff in cigarettes packs alot of punch in increasing nicotine's already addictive nature.
Furthermore, because vaping doesn't leave a lingering scent, it doesn't have as many exposure triggers like cigarette smoke does. Vaping is also less common that cigarette smoking, so you aren't as likely to see it around and crave it there either.
My suggestion to anyone wanting to quit vaping would be to wear a nicotine patch and vape 0mg juice to dissassociate the nicotine from the vaping. After that, vaping is just a habit that has no chemically addictive potential. It's just habit to keep your hands busy.