Personally speaking, I wouldn't re-buy something I had a bad experience with.
I'm not convinced by the 'bad coil' story. I've not had such a thing in 2+ years.
The pre-made option depends on your taste in
vaping power.
I use tiny little Eleaf 1.2ohm
coils for tootle puffing around work. Can't complain...never get less than 6 days and never more than 10. About $1.30 each from
fasttech bought 20 at a time.
I absolutely do
not recommend the Cubis tank with either 0.5ohm (spitting) or 1.5ohm (tasteless). The 0.6ohm might be the only option (like they use in the AIO).
I find mini Nautilus BVC a bit "meh" these days to be honest. The Gold standard just got a bit rusty.
What battery/mod are you using. Does it have variable power?
If the 1.0ohm CL coils are OK, no reason to use the 1.2ohm unless you have no option with the power setting and find the 1.0ohm 'wrong' in some way.