Subtank mini... You get more for your $$. I still have 1 of the brand new occ coils that it came with because all I use is the RBA deck. The Atlantis is an awesome tank, I'd get the Atlantis V2 if I were to get it but I love having an RDA section so much, I'll wait for Aspire's new tank to come out that also comes with an RBA deck. It's called the Triton, I'm not sure of it's release date though. Plus, the Subtank takes less watts than the Atlantis to run, so you will conserve more juice and battery life.