I dual used for years and just this year gave up cigarettes completely. For me, the Juul works great as a substitute, but I wanted something cheaper, with a higher capacity, and more flavor choices.
I have settled on the Aspire Nautilus AIO as a pod system that gives me a solid MTL draw with a bit of throat hit, good flavor, and no hacking - with 45-50mg juice. I prefer a button activated draw as I can get a better hit.
The other mod/tank AIO that I really like is the Vandy Vape Apollo AP. Nice tight MTL, good throat hit, large battery and tank, button activated, good flavor, and still small enough to forget it's in my pocket.
These three - with high nic salts - are a big part of the reason I am finally smoke-free after vaping for over five years.