I never got the mini, but I have a couple of the full sized ones and I love them! I don't know how much they're different, if at all, but if they're basically the same except for the tank capacity, then I'd say you scored!
What I like about my full sized ones is the infinite
juice flow control, which is completely separate from the air flow, and if you get the tapered wick tails properly tucked into the
juice channels when you wick it, it will never leak. At least mine never have. They're stupid easy to refill from the top, too. Just close the airflow holes, screw the juice flow control to closed, take off the top and fill. Then unscrew the juice flow to where you like it (I like MOAR), and open the AFC ring and you're
vaping again. Nice tanks, seriously, and great flavor. I've heard the minis have even better flavor, but the full sized ones have PLENTY in my opinion.
