Been a loyal Uwell user for over a year now but I cant take it anymore! Just got the Cartel Revenant mod with Crown II stainless, last 8 coils I have been using have been burning out in a day or less. I taste the burn remove the coil and I see black crap all coming out from coil. I have been using the .50 at around 40-50 watts. So I'm not doing anything crazy. The coils for the crown never lasted to long but since I got this new mod it's been horrible. I got the baby beast hasn't been as bad but flavor is not close to Crown II. Just ordered the Tobeco sub ohm super tank with the .40 coils. Been hearing great things about it, hope it's good. I really hate building that's why I have been hesitant in getting an RTDA. But soon might have no other choice