The Valyrian AIO is a great system. After a full week, the coils are still going strong (although the 0.8 ohm has given me a few burnt hits here and there; the 1.0 is my go to and has been perfect.) The flavor these coils produce is on par and perhaps a bit better than the Caliburn Koko pods. Buy a few extra pods to swap flavors! The only drawbacks to this device are a lack of USB-C charging and despite the descriptions on a lot of these, there is no auto-draw.