I use a Vamo with a Mega for my go to daily juice which is Ecig N Vapes Bannana Nut Bread.
I have an assortment of Spinners with regular AeroTanks, Mini AeroTanks and a few Protank 3's for other various flavors and nic strengths I like to switch off to for either a flavor change or low nic before bed.
All of the above work very well, each takes a little different vape style, air flow, draw time, power and finesse to achieve "the perfect hit"
Going to give a Kayfun a try as soon as It gets here, I imagine I will need to do a lot of reading and some experimenting for that one.