It's really intended to be a MtL tank, though more open than the tight Tootle Puffer style tanks. With the airflow restriction insert removed it can work for restricted lung hits. Won't be as open as true lung hit tanks like the Boreas or Aromamizer. Lots of room on the build deck, so no problem with that coil fitting, and it wicks well so between the wicking and the airflow it can keep up with that coil even with thick juices.
The Merlin favors the tootle puffer side no doubt but wide open its open enough I guess. A little more would be super but I like a slight restriction so I can work with it.