Almost 3 months with my cignot equipment and NO PROBLEMS. Atty, batts, PCC and passthrough all still working and working well. From what I've read, that's not the case with other vendors' 510 stuff. Of course, now that I said that, something will probably wear out... At which point, I will order from cignot again.
BTW: When I was shopping around, I pretty quickly figured out that there are shills on this forum, particularly in the vendor's section. If you see the same few "happy customers" saying things like "Oh my God!!! He's so GREAT!!! The next Messiah!!! His juice brought me to the brink of ecstasy!!! Oh THANK YOU THANK YOU THANK YOU!!!", pick up your wallet and run for the exit. Or at least take such cheerleading with a BIG grain of salt...