Here is my quick review of the kayfun Lite which is probably all old news.
I've vaped it quite a bit over the last couple weeks. It is an easy to use, easy to maintain atomizer which delivers an excellent vape in most aspects. I appreciate how easy and neat it is to partially disassemble and clean and maintain the coil. While vapor production and throat hit are fantastic, flavor seems strangely muted. I can't imagine why either, I see no reason for that.
Portability is great with one exception: It hates rapidly going from 45 degrees Fahrenheit to 90. Leaks like a sieve under that circumstance and unfortunately I do that quite a bit at work. Machining is excellent.
It's a keeper, and I'll bet it would be killer with unflavored VG since that's sort of what my juice tastes like in it anyway.
If your flavors seems muted in it, your setup isn't optimal. The coil needs to be as close to the air hole as possible, and personally I get the best flavor from a microcoil with cotton.