I'm a big fan of vertical coil RDAs and this is quickly becoming my favorite. Super simple to build and wick. Having the juice flow come from the top is a huge plus when squonking. Leak resistant. Nice smooth airflow, and lots of airflow options (although there really isn't a huge difference between them). Only dislike is the drip tip but since it's a standard 810, it's easy to replace with one I like.