I have been using this RTA daily since i ordered almost a year ago now. I have the blue one, and i put the bubble glass on it. The honeycomb airflow under the cotton on the build deck, awesome design. I dont know why or how but of all the RTA's i have tried NONE have come close or compared to the flavor and greatness of the VandyVape Kensei. If i could i would order 100 of them so i had them forever and if one somehow broke or something happened i had plenty more!!!! I know there are so many new mods, atty's, RTA's, RDTA's and so on that are newer and i have not tried. But i have tried a lot and worked and 2 vape shops. The Kensei is the absolute BEST RTA for the price and quality. I love VANDY VAPE, they make all great stuff and you cant go wrong either way if its Vandy Vape!!! Get one, try it, prove me wrong please!!!!