My thoughts: Those ijoy 20700 are the business...seriously...
vaping hot close to 30a without breaking a sweat, and that low and slow 30~40w vape just goes and goes. They fit perfectly in my VC4 charger. The mod itself is pretty slick, other than the flimsy plastic screens that are finger print absorbers lol. The soft touch carbon fiber stickers are comfortable. There's no button or battery rattle unless you really really shake it. Other than that, it just feels cheap, and the only reason I justified the cost is the inclusion of those
batteries.
That Sherman
rda though...woof! What a beast. it will have a new home on a mod worthy of it in due time.