In your review you mention that you think the longevity may have something to do with the cleaning and maintenance, I actually bought and received a 357 on November 2nd or 3rd. I have been using this single 357 as my sole atomizer since I got it, I have not cleaned it a single time, I am not exaggerating, no alcohol baths, no ultrasonic cleaner, nothing but daily blowouts
through the top, I am honestly still getting the awesome performance that I got once the atty was broke in. Obviously, this may not be the case for everyone, but for me, I am very happy with the purchase. Also, it could have something to do with the
juice I use but I do use several suppliers and flavors so not really sure that is the case. When I first purchased the 357, I told myself that if it lasts 6 weeks with little to no drop off in performance then I would probably
buy again. I am at almost a month so we shall see. Just my experience.