Best dripper I've used in years. For a single coil rda finally we have one with sufficient airflow and space for big coil. It has really deep juice Wells. Most reviews mention using it as a squonker but I only use as a dripper. Just remove cap and drip down the cotton at the sides and it holds alot. The flavour is amazing. The airflow inserts don't make any difference personally. I have tried both and just stuck with the slotted one because I don't need to swap it back. It just works. It's a solid rda. 4 post screws so can use coils wound either way. The glass cap is a nice touch also but I have kept mine boxed through worry of breaking it. I would have to try hard to but I'm clumsy. For clouds, flavour and airflow this is a absolute winner for a single coil.