Tbh I'm same as you can see I've two of the cheapest aio on mkt I mainly squonk again two pulse squonka lol (cheapest) but they do the job always chasing that perfect flavour though I vape tobacco flavours and spent a fortune with what others have recommended maybe one day I'll find the perfect one lolMainly Build Quality plus most seem to have better Airflow and better boards though you pay a lot more for them, Pulse are ok but feel so cheap, i only bought the ones i have because they were so cheap which is a good thing for some who want to try AIO's but don't want to spend silly amounts of money like the person typing this.