The Triton Tank system is a wonderful starter kit for anyone new to vaping. It's affordable and performs exceptionally well. That was my first kit coming from cig-alikes, and after using the Triton, I knew that I was free from smoking for good.
I still use it daily, and it has never failed me.
I also use an itaste MVP, but that's not a good "stand-alone as your only battery" thing. You always need a back-up for your back-up