I generally don't recommend aspire products since everything I've had from the full size nautilus to the et-s to the ce5's have stunk the place up with their constant leaking and being a general pain in the .... But my buddy just quit vaping and gave me his two mini nautilus' and his istick 20w. This thing is built WAY better than even the full size one. No leaking, no gurgling, none of the garbage I've had to deal with with the other models. So I think I can say, the mini is the .... and I'd recommend it.
But I'm sticking with my protank2's and 3's for most of my vaping for the juice reason. The nautilus sucks up quite a bit (compared to my other stuff, not your sub ohm craziness) more juice than I'm able to afford to buy lol. They'll be a nice treat once in awhile.
Edit.
Oh and make sure if you go the nautilus route to get the organic cotton BVC coils. I've got a normal BVC in one and a cotton one in the other. The cotton out performs the regular ones in every possible way.