Yeah the rebuildable section. The premades don't last me 2 days. The moment I see gunking and caramelization I instantly throw the thing out because it can't wick for .....
Though the new coils that came out with the new Kbox subtank seem much better with bigger wick holes. The RBA section seems nice too.
I know a lot of new tanks now beat the subtank, and allow for thick wire builds, but those just kill juice so fast your replacing bottles before coils. I think the subtank still strikes my fancy if I want to build super low, with wide open air. Or just a flavorful restrictive warm Vape when building with thinner wire.
Honestly, I've had the reverse experience. I was burning through coils like every five days with the Subtank Nano and that was when I had a 30-watt device. I now have a 100-watt device. But those were the premades. I think you're referring to the rebuildable deck, right? That's something I would like to try.