Finally got to try out my Cera EO last night. Loaded it up with some runny oil and it soaked into the ceramic very easily after I gave it a good warm up to heat the insides. I gave it a little more heat but not full blast, so the oil could fill it up well. I think I put about .5 in there just guessing. After letting it sit for a while, I turned it on and it started making delicious vapor. holy crap is that tasty...it was PURE flavor, nothing added. I love that. This is what I've been looking for. Something that will allow me to taste exactly what I put in and not come out altered. Now, I'm a lightweight conservationist compared to most oilers, so I didn't go hard on the button to produce a big cloud. My friend gave it a little longer heat up and got more dense vapor than I did. I love how it can produce vapor big or small. The vapor was noticeably smoother and not at all hot compared to other cartridge based oil vapes. I am beyond satisfied. This is exactly what I've been looking for. This was only my first try, and we will see how it holds up over time. But the cera looks and feels like it was built to last. Very happy right now. No more messing around! Delicious, effective vapor whenever I want is a beautiful thing.