Started on Safecig cigalikes back in 2010 or so, got down to 2-4 analogs a day for a couple months and failed. Next it was the Ego's and cardo's and cardo tanks and got down to 2-4 analogs a day, failed after about 2 to 3 months, came back and tried again on a protank on the ego vv's then protank II and a mvp2 failed failed failed. And it was a struggle to use them. The old boge cardo's worked really well, but couldnt find a juice i liked.
Now ive got an Atlantis CFmod combo and a Subtank/sigelei 100w combo, completely off analogs for a week now and im not struggling. Time will tell. But the effortless performance and convenience is finally to a point for me where I'm not longing for an analog.
The biggest difference I think is the quality of eliquid available now. When I was try'n the protank and boge stuff, I went through I dont even remember how many vendors I went through and it was all crap. Now ive gotten juice from 5 different vendors 20 different flavors, and I've only not liked 1 flavor out of maybe 10 ive tried so far. And that 1 flavor was not bad, just way way to sweet for me.