With the 0.4 I manage to get an average of 1400 to 1600 puffs depending on the juice to 1756 puffs being the most out of a coil without cleaning it, and I’m constantly using it through out the day taking big draws. It’s the longest lasting coil I’ve tried. I’ve had some juices clog or cause a flavor fade, one after 1042 puffs after cleaning got 682 more, my first one after a whole 1452 puffs but after a quick rinse, soak over night and air drying for a day, it’s good as new and I’ve gotten another good 258 puffs out of it, one after 1174 (I dropped device in the stream without cap) after cleaning and drying out the coil it gave me another 529 puffs. Wicks super quick. I do notice that the seals tend to leak after filling several times probably from the tank pressure so after a few fills it’s best to take the tank off and check and wipe so it don’t leak into device. The seals on the coils tend to have a bit of play around the coil on a close inspection and don’t like being wet so make sure it’s super dry before installing. I’ve had a brand new one leak into device after first fill because I didn’t make sure tank groove was free of juice and dry before installing, after taking apart and cleaning super dry, no leaks again. I didn’t like the 0.6 as much got only about 420 puffs, and the flavor really wasn’t there for me with the smaller draws, I prefer the dtl. I haven’t cleaned it yet and tried it again to see how many more but I’d estimate probably about 1000 total compared with how many I get with the 0.4. All and all it’s a great long lasting affordable coil never really got an awful burnt taste towards the end yet, when it’s done it’s time it’s mostly a flavor fade and a bit of a dry hit and a bit of draw on the battery when it’s used up, compared to my other devices coils which get wicked harsh. I’d highly recommend!