Yes i smoke in the same room as my humi.
I haven't noticed any ill effects on my sticks, but I have only been using it a few weeks.
After I turn it off an hour or two later I can still smell the ozone though not as strong.
I like the ozone smell, it smells clean and crisp to me, but my wife disagrees, she finds it to have a chemical type odor.
When I was kicking around the Idea of getting one, I found this thread
http://www.cigarasylum.com/vb/showth...hlight=cleaner
I PM'd Walt (klipsch) about it because at the time this thread was a year old.
He was still using his and still loving it.
He may be able to better answer your question about long term exposure to your sticks.