I'd like to delete this review but can't find a way to do that. I tried the same e-juice in a different brand carto the day after I did this review and went "Oh, s___, this has a burnt taste." So, I deeply apologize to Ikenvapes. This is the original post: Shady, good review. I just tried my first 2 of Iken's LR Mega's. Experience is with a RIVA, usually Boge 2.0's which I was very happy with and I have never burnt a carto until today. Burnt the first one then on the second made sure it was full (filled from top with sryinge and bottom with condom, then dripped some in, then rested it for 2 hours) and I'm still getting a small burnt taste even though I've rinsed my mouth many times. There's a lot to like -- good flavor not counting the burnt part, lots of nice warm vapor, no crackle. I see what you mean about where the black coil is and the center tube is off center on one of mine. I thought I'd like Mega's but have changed my mind -- it's a lot of juice to waste if the carto doesn't work to perfection.