Well, I've been waiting for my MVP2 and Nautilus to arrive and I got a little furious with the CE4s I've been using so I paid a visit to my local Vape shop and bought a Kangertech T3'D. I must say this is the greatest Clearo I have tried (keep in mind my experience is limited). I will never go back to the CE4 setup I was struggling with. The flavor with the T3'D is leagues above the CE4. The rebuild/replace feature of the coils is awesome. I just have one question with these tanks. Is there any issues with cracking from using harsh juice? I just Vape coffee flavs ATM but I'm looking into expanding my flav profile.