Hi! I would also cast a +1 vote for the Nautilus 3, I have both versions (22 and 24mm) and with a 1ohm mesh coil, it gives quite good flavor in MTL, so far it hasn’t leaked on me, its airflow is quite flexibly adjustable. And what you wrote is true, a rebuildable atomizer can surpass this in flavor, but unfortunately, necessity is a great master.
It might also be worth looking for reviews of the newest version, you might find this in more shops due to its novelty (although it seems like another money grab to me)
P.S.: As far as I know, the Nautilus/BVC coils are wrapped with Kanthal.