rba's is the direction I took from a PT. I currently have the Aqua, Russian, Teminator-C, and Fogger. Finding the best build and wicking on each can be a bit fiddling in the beginning. But once set up I don't have to mess with them for a week or longer. The Aqua I re-wick, at most, once a week. I'll dry burn the coil after removing the wick, and then put fresh wick in. I'll change out the wick when it's not doing it's job properly or changing flavors. The Russian gets re-wicked every couple weeks or so. The Term-C has been on the same build for at least a month and hasn't been touched besides filling up the tank.
I vape more juice through the Aqua then my other rba's mainly because it has a sub ohm build and consumes juice like crazy when vaping at 34 watts. I use it for my ADV. The others I have different flavors in to change up my vape and only vape them at 15 watts. I use them all daily but the Aqua out vapes them all and is my work horse.
The main trick with rba's is to find a build that works great and stick with it and not to try a different build. When you get to that point, maintenance is minimal and only have to wrap a new coil every month or two. I usually do this while watching the internet, checking out the forums, and vaping. So it's not like I have to devote a time frame to build.
I build mostly micro coils, in one form or another, and use a SS mesh cotton core hybrid build on the term-C. Be forewarned though, one you head down the path of rba's there is no going back. lmao