About a month.
Not defending them. They don't ship internationally, so there's no way for me to try out them
Just from experience, took me some time till I started to taste things for what they are.
And issues with "equipment", got one drip tip in boiling water as I'm writing this post. Saturated with tobacco taste from HHV juice, washed tank, changed wick and filled vivi with white rabbit and still was getting strong hints from serendipity
I'm on white rabbit now for a week and can assure you that after cleaning clearo I'm not always getting flavor out of the juice. Sometimes half a tank, sometimes it's good right away. Sometimes battery...