The ultimate for me in an rdta is one that doesn't leak (ever), doesn't dry hit (ever), is simple to wick (for anyone), and gives great flavor! This seems to meet all those criteria - BUT, it's possible that it might not work for mtl people. So far I've only tried dual coils, and it's pretty hot, with some spitting, and wonderfully airy. However as you can close the afc right down and use a single coil it might work for more people. I'll try a single coils sometime and see how that works.
Oh, and I can close the AFC and put it in my purse upside down with NO leaking. That's also a huge plus in my book