The sigelei 100+ or the 150 are great options for high wattage devices to ensure you can power most any build youll make in the future. I had a Provari 2.5 and traded a friend for their Hana box, but neither device could power deep sub ohm coils. However between the IPV3, Sigelei 150, and God Mod 180, the Sigelei is imho the most reliable, practical, and easy to use. Its also quite cost effective. The subtank or atlantis are great tanks for any of those devices however, and you wont go wrong with any of the aforementioned mods.