Possibly one of the best tanks I've used yet. I had a Vivi Nova tank before this, and this redesign addresses all of the issues the original had. The wicks no longer burn up (or at least not as fast) since they are able to be submerged below the liquid line. The gaps in the original model are now filled up to help prevent flooding, and the air draw hole has been made smaller to provide a more steady, smooth stream of vapor as well as reduce operation noise and flooding as well.
Every drag is as smooth as the eJuice in the tank will allow.
For anybody getting a burnt taste, make sure you do not run your tank dry and that the eJuice you're using doesn't contain oil. If it does, it must have a higher-rated PG concentration so that it will not burn.