The Herakles? What's this, Jeff? Another sub tank? Well... yep . I like for my customers to have choices; each one has its own quirks, after all (the tanks, that is). The quick rundown, since after so many different tanks you can only be so elaborate: adjustable airflow, 3ml e-liquid capacity, organic cotton bvc coils in 0.2 or 0.6 ohms, stainless steel & pyrex with a copper 510 connection pin, and heat-dispersing fins around the base, and a really unique look. This is the first product I've ever tried from Sense and, I must say, it's a pretty outstanding introduction thus far!