I bought a 20W Istick less than a week ago, loved it...last night it showed atomizer short, so thought coil blew so would build one this morning and be on my way. Well not that easy, it shows atomizer short without an atomizer in aswell, if I blow on the tread it shows ohm reading, it can actually fire without an atomizer telling me that my wiring would be turning into a coil, so ya, as far as no bad reviews for istick? mine is a piece of shit. Don't suggest buying one.