I found kryptonite interesting at first, but didn't really care for it all that much. But after several vapes, flavor became addictive. Reminded me of lemon lime candy with eucalyptus, and hint of melon and menthol. After 2 weeks it tasted the same as day 1. I finished my 15ml bottle about a week ago and i'm missing it now. All of the flavors iv'e had from their homebrew and premium lines were very good to exceptional, except for their mango. It tasted like those dried mango's instead of fresh mango. Nothing offensive though. I also found that their flavors are sometimes inconsistent.
Here is a list of other flavors I ordered so far, and my take:
Patriot - A mix of premium cigar and pipe tobacco - amazing (I order a bottle of this with every order)
Sweet Apple- Cup of fresh apple juice -yumm
Peach - First bottle tasted like biting into a fresh peach - second bottle was OK but not as good as first
Maui Menthol - Like vaping a delicious menthol cocktail all day - woohoo - Pina colada, menthol, mango, with a hint of passion fruit.
Ecto Cooler - Very tasty orange drink, with a nice kick of orange rind
RY4 (premium line)- Out of mailbox tastes like pleasant butterscotch- after 2week steep tobacco makes an entrance and it's outta da ballpark
Hawaii Punch- Like a punch, but not the Hawaii punch. Pretty good anyhow