I heard something's a while ago about some bad Crown coils being sold online. Seems like they were coming off EBay though. The nickel is very nice, it's a mellow but tasty vape. I didn't care for the 1.2's myself but that's just me. The .25 is my favorite and I like them about 90 watts. I did try it at 120 but it was wayyy too hot. Drip tip burnt my lips....