Honestly, every vaper should have at least a couple 510 attys and a few carts lying around for backup. I always, even after years of vaping, end up reverting to the 510 from time to time. Maybe I'm waiting for a new ego-c atomizer to come in the mail. I also built a homemade passthrough that I can run my 510 atty at 5 volts directly from my computers usb. I cannot get more better and better taste from any other device. Dripping + 5 volt 510 is awesome. Plumes of vapor... Lastly, these are rugged little things. I've had one atty for about 4 years! I just clean it once in a while and it still tokes up a storm. I think some of the older attys were built to last.