i think it depends on your self confidence (and budget) for where you start and progress to the next steps.
ie,, i lasted 1 day on an aspire stick thing,,, then i went to a kangertech nebox,, that lasted about 2 months while i did a lot of reading..watched a million videos,,,,bought a kangertech topbox,, i like it,
but i want a bigger deck to coil/rebuild,,bought a few rda's,, messed with them a bit,, didn't care for dripping but do like small tanks (i dont mind the 'often refilling')
i have several decades of diy of non vape things ,, so i am quite comfortable learning other things and enjoying the learning process. so,, right now i am waiting for a SXK Corolla,, it looks like a happy medium for me,, larger deck to coil with tails in the juice ,,,,,,the design actually 'makes sense' and i think you will see more 'rdta's like it. i chose it over the moonshot because it allows for dif drip tips,, and doesnt have the spinning deck thing (for which i dont understand the purpose). i wouldn't mind a larger version too. ......
anyway,, i wanted any color but red (because it looks too much like orange to me,, and i am not an 'orange fan'...............so i am having to wait for a raft from china to bring it because i couldnt find one here in the states other than orange) lol
my point,, just watch videos of everything to get an idea,, and decide where your comfort level is.. and be happy where ever you land