it's so fun and tasty. don't be afraid about the bottles breaking--as long as you get the flip top kind that are meant for brewing you'll be fine. I've had a few instances when i opened the bottle and kombucha exploded everywhere which is shocking and a mess to clean up but also hilarious. the way to avoid this is to refrigerate the bottles before opening (carbonation is less intense at lower temps ig)
my fav go-to flavor is lemon and ginger... nothing really beats that for me.. but its fun to switch it up by adding pomegranate or blueberry or whatever. the last batch i put in a bunch of kumquats i took from my neighbors tree and tbh it was not very good. wayy too tart. you'll figure it out