Although the delivery on this took longer than the other orders, I wasn’t overly concerned (lots of public holidays involved) but I have noticed a couple of vapes seem to only last 1 day - it wasn’t the whole box (I haven’t used all yet) but there were 2 or 3 in there that just didn’t last. Other than that - good product & does what it is intended for. Ordering is simple as & delivery is prompt.