I bought one of these 7 months ago and liked it so much I got 15 extra atomizers a week later. I figured this would be my everyday unit, which it is. I clean and dry burn my atomizer about once or twice a week and believe it or not, Im still using the first one (of 2) that came with the tank kit!!!!!
Im sure that if I put in a new one I'd go wow, thats way more vapor, or tasts better, whatever, but at this point I just want to see how long it can go before it burns out or clogs so bad I can't use it. I have never read of anyone else using one of these this long, probably because they're so cheap to just put in a new one, or cycle a few in and out. 1 month in and I decided to see how far it could go and its still going. Always works better after a cleaning and dry burn though.
I don't care that much for huge vapor hits anyways, as long as I get something out of it to make using it worth my while. Its been seven months since I gave up analog smoking so I don't need to carry it around with me all day anymore. I just use it at night while watching TV. When I first got it however, I used it constantly like 2 tank fulls a day.
I'll keep guinea pigging myself and see how long it lasts.