I see both advantages and disadvantages. The main disadvantage being that it's different - there are parts galore for the standard AR platform everywhere.Long stroke piston as in Kalashnikov. Upper receiver itself is not interchangeable with standard DI AR’s. Fantastic all around (and if you shoot suppressed there is no gas coming back in your face)…
ETA, when I say fantastic all around I really mean it. They are my new favorite for Armalite pattern rifles, over everything from DD to BCM…
The advantage of course is that it falls outside of typical bans and regulations because it's not specifically listed and functionally it's not a copycat.