I tried many e-cigarettes but I found vype is the best one.
And I like the vype pebble so much but unfortunately it leek so much and that bothers me..
Any way the new epen 3 is perfect in every thing but I hope if you can change two things in the future
1- the charger to usb type C, because its the new kind of chargers,
2- if you can make it without on and off button...
Thank you and best regard