In the compare/contrast category, I have noticed that some flavors get lost on 5 volts (surprisingly most noted this on a thin mint cookie vape...I'd have thought that would stand up well to higher voltages, but not so- the flavors were more distinct in 3.7). What I like best about the LR atomizers and cartomizers is that it gives me the flexibility to either quickly. While I guess in theory it's not much more involved to swap out the batteries on a 5V to get to lower voltage than it is to swap out atties, to me it just seems more convenient to keep an LR carto filled with something I like at higher voltage and pop that on my 3.7V than it would be to swap out batteries. Of course, the easiest solution is to keep one of everything going (right now I'm sitting here surrounded by a 5V passthrough, a 3.7V BSB, and my Riva, each with a different flavor on them.