I have the Evod, T3s, IClear 16 and 30. The Iclear 30 leaks into the 510 connection bad (even replacing heads does not fix), the T3s leaks and gurgles, the IClear 16 is very nice and the Evod is very nice. The IC16 is warmer and the Evod does not require the tilt to keep wicks wet. My preference...