I've been using only one stainless steel CE2 almost exclusively for a few weeks now. It is the best atty/carto I've tried to date.
No leaks. Very tough. Very durable. Looks good. Vapes good.
Only negative is syringe must be used to fill.
Have not needed to clean it yet because I'm using clean burning liquid.
I did a dry burn couple days ago for kicks.
Hope my other SS CE2s work as well.
I'm happy w/ CE2 if quality control is consistent; hope they don't get discontinued soon.