Hello,
I purchased the Nautilus X tank as a spare tank for my Dicodes and Provaris VV/VW devices. I normally use Black Notes e-liquids with 1.8 ohm coils, at about 14v, and Kabuki tanks.
I've found the Nautilus X coils, don't last very long (10-15 ml of e-liquid), and at times the coil unscrews when you are topping up the tank. I find the air-vent often alters when you unscrew the top to refill the tank and as I bought the black version I find it's hard to discern the setting of the air vent in normal light, to readjust it.
The flavour it produces is fine, but not nearly as good as the kabuki and coils don't last as long as in the kabuki - having said that it's only about1/3 the price of the kabuki. The drip tip is also quite loose fitting meaning I'll probably loose it before long - and I don't know where you can buy spares.
I will keep the Nautilus X as a spare tank, but will continue to use my kabukis as the preferred tanks.
(If someone at Caktus reads this - please stock Dicodes and Kabuki tanks).
Cheers,
Tom