I'm told it's actually more like a Fogger, before v4. I have read that Foggers are quite finicky, so maybe the RSBT *is* similar, because it truly is finicky compared to a Kayfun. Kayfuns are extremely easy to build, even for those new to coil building; I had only been rebuilding my kanger T3S coils and mini-protank coils for a few weeks when I got my first kayfun, and it really is easy, though it seems like you need 3 or 4 hands when you first start -- a vise is a handy tool, to hold the head while you're getting the wire wrapped around the screws, actually for either of the two types, kayfun or RSBT. But Kayfuns are more forgiving with wicking, particularly if you use either silica or rayon to wick your kayfun. Cotton is never forgiving; if it's too little, you'll taste hot metal (a coil dry hit) and if it's too much, you'll taste burnt cotton. Which is why I finally gave up on cotton in the kayfun and now use only rayon.
With the RSBT, I first tried the silica that came in the coil that was pre-installed, and it wasn't a terrible vape, but generally lacking in flavor as silica usually is. Then I tried rayon, but I guess I used too much, because I got to taste what a rayon dry hit tastes like, and I can tell you, it makes burnt cotton taste GOOD, it's so nasty and chemical-foul. Then I guess I didn't use enough, because it was a bit harsh, and then it just leaked -- rayon is bad about compressing when it's fully saturated. So I gave up on rayon in the RSBT, made a 7/64 coil (the smallest size I like to use with cotton, to avoid choking it and getting dry hits), and used organic cotton, and it's a great vape. But I strongly don't recommend it for a "noob" or anyone else who isn't prepared to fiddle with it for a while.
Andria