Some of these seem to be splitting hairs or involved in a pissing contest. From 200w to 220w to 230w, all on dual 18650 mods. 18650's can only push so much and the window where max wattage is still viable is liable to be slim. I was a bit irritated with my first istick tc100w when the firing button crapped out within a couple months. Got another and it's lasted over 6mo without issue (aside from the paint). So far have had my alien for a couple weeks.
All mods seem to have issues, I've also heard plenty of folks with issues with their dna mods. 510's suck, buttons fail, battery doors that won't stay closed, magnets that fall out, poor fit/finish, paint that falls off, shitty tc, shitty chips, screen freezes, battery doors that don't work. I've heard it in reference to wismec, istick, hohm tech, dna mods, vapor flask, sigelei, smok etc etc. Not sure there's a mod out that hasn't had issues honestly, qc across the board seems to be a crapshoot pretty much industry wide. Some maybe more than others but no one's been exempt.