Yeah the NJoy King is allegedly good to experiment with, or for backup. A friend did stop smoking with V2's (light smoker) and I have heard Volt is decent and reasonable as it goes for cigalikes.
I've heard the thing about wanting the exact match to a smoker's cigs several times and have a guess on the psychology of it. You don't want to give anything up and yet aren't looking for something better either because eventual quitting is in your mind. I didn't have that problem because I wasn't really thinking about quitting everything, just wanted the sore throat gone, and soon had a few tastes of good e-juice that showed it could be very good. In fact i stopped vaping at one point concerned over a health problem; it wasn't the cause but when I restarted, it was because I remembered it being so good I was willing to take a risk!
Vaping in some ways is comparable to smoking, but inherently will also be different, sometimes better, sometimes worse, sometimes both at the same time, and even sometimes way way better. Good vaping devices tend to be bigger than a cig, but not necessarily as big as a pack (Blu's system was to use the pack to charge their little ecigs, and then you charge the pack -- the whole system is not that small).