Wotofo has made some significant upgrades to the Troll for version 2 making it one of the best, affordable RDAs. Significant airflow, deep well, and deck improvements provide a mix of great flavor and huge clouds.
Wotofo and MikeVapes are back at it with the dual coil version of the Recurve, featuring a side airflow and deep juice well that makes a great dripper or squonker.
The Vaporesso FORZ RDA takes combines test design elements to create a pretty killer RDA.