Yes indeed, my whole goal of getting into e-cigs was to eventually be nicotine-free.
I knew many years ago that I wanted to quit smoking, but ended up with many failed attempts. About 5 years ago I quit smoking for good, but I could never get off of nicotine. Gum, patches, lozenges, snus, whatever fit the occasion. I switched to vaping in October with DIY juice, and have gone 24mg-18mg-12mg-10mg-8mg-6mg-5mg, and the bottle I make tomorrow will be 4mg.
When off the nicotine in March I may keep one or two setups for occasional 0mg fun, but the other dozen or so will be donations to my smoker friends.
Having moved from smokeless to vaping, I have felt a definite impact on my lungs and have been frequently out of breath. Can't wait to get rid of that feeling.