i bought one and its different than any other rba's that i have(AC9, cobra, agatt2, kayfun) understandably so since aios is a top fed genesis.
biggest difference is that the vape is cool, i run low ohm coil setups on all my gennys(.6~.8 ohms) and even @ low ohms, the vape is cool even tho
coils are burning hot enough to warm the bottom of the atty. It took me little bit to get used to the cold vape but i am slowly getting used to it.
building the coil was.... difficult as well, i never rolled 2mm wick and dont own a multimeter(yet) so i had no idea what ohm coil i was wrapping, and also i love the clouds of low-ohm coils but i never could build just a low ohm SS wick setup however if wrap regular ohm coil(guessing 1.5+) it perform well without getting dry hits but gets sub-par vapor like the youtube video of mojo showing you how to build the AIOS.
I havent tried the L-wick to thicken up the coil area, but i believe you can get it setup pretty nicely with just a simply SS wick setup like this
youtube guy. He wrapped 28 ga, 7/8 at 1.0-1.1 ohm and getting pretty good vapor.
i am currently running 500 mesh with 28ga kanthal 4/5 wrap over ekowool and getting pretty good vapor/flavor out of it, and only thing different from my other setup would be that the vapor is cool.