I'm not as good as you might think. I have my own personal agenda for doing the research and buying my wife e-cigs. As someone who has never smoked (not one inhalation of anything), smoking is a habit that my wife has that I absolutely hate; it's amazing we even found each other, but love has its ways. I figure that if I can wean my wife away from cigarettes then she has a better chance of quitting altogether. At the very least, I won't be breathing secondhand smoke. I've gotten her to smoke outdoors or in the garage, but even there I smell the smoke in the house. And come winter, I take over the garage with my bicycle trainer (competitive cyclist). I don't want smoke in the garage when I train. It'll also be nice not to smell smoke on clothing or on her breath and mouth. I'll do anything to help her stop the bad habit of smoking. After 20 years of living together, this is the first chance of seeing real headway to getting her to quit cigarettes. I'm thrilled!
First off....you're a good hubby to be doing this for your spouse. Too many women don't know how lucky they are to have guys like you and me...lol.
I've had both, rivas and egos, and found the ego to be a superior product.(my opinion). Cartos rock(atties suck...too much fiddeling around).
Finding a juice that you(she) will like is like finding a movie that you(she) or myself will all like. It's almost impossible to find one that everyone likes. Madvapes has a good assortment of tobacco type juices that are pretty reasonably priced. I know that a lot of people will steer you towards samplers, and that is good...kinda, if your a "dripper", but with cartos that can take 3+ mls. to fill it is kind of hard to check out a juice when you only get 1 or 2 chances to decide if you like it or not. I quit ordering samplers for that reason and only order 10 mls. as a sampler. But at the onset the smaller samplers might work because without a doubt she will take a single vape of some juice that she will know right away is not for her.
Value vapor has some good priced juice also for getting your feet wet with vaping. And then, if she is anything like the rest of us, she will soon be ordering/stalking/stockpiling/sampling...etc...
Good luck on your quest. And again...you're a good guy for doing this your beloved.