I like Kayfuns.I am in the same boat. I bought some kayfun clones from fast tech and am dreading trying to build on them. They were shipped today.
A couple of years ago I got a 'rocket kayfun clone' from fast tech when kayfuns were were the hottest thing in town. The rocket came with a built in coil and I Vaped it with much enjoyment.
The flavor was amazing but when that coil failed I put it away and haven't used it since lol. I didn't even build one coil on it. What a slacker I am !