Balky... Squonking is basically the same as dripping, only instead of carrying a mod and spare battery and bottle of juice, you only need the spare battery as the juice is Inside the mod

This means when it comes time to juice up you dont have to juggle your mod and top cap and a bottle of juice, you just squeeze the bottle and give it a second, its far from perfect though, sometime you have to squeeze a few times especially if the juice bottle is low on juice.
As for RDA's, you wont get better flavour or clouds then with a good dripper, sure some of the new tanks get close, but not close enough...
But maybe you should get a cheap dripper and try it for a few days first before shelling out on a squonker... it can get expensive.
Good drippers ive enjoyed are:
Hobo V2 = flavour
Velocity = clouds
Magma = flavour
Zenith V2 = flavour
Infinite CLT V2 = clouds
Mutation = clouds
Vertex = flavour
Marquis = flavour
Dark Horse = clouds