I would do one change from the original at a time.
The kit is obviously good orginally based on reviews and the fact that it IS a kit they offer.
Add honey the first time, write everything down. See if you like it, then move on to something else you'd like to change.
Basically if you add a bunch of stuff and it tastes like ass... how do you know what caused it? Basically you will have ruined a proven recipe and you won't know why. Maybe that's cool to you or you don't care or whatever but I like to control the variables as much as I can. Try something, see if it improves or declines, note it, and try to improve it as much as I can until it fails.