hey man i seen you thinking about geting a twist and want the most bang for you buck i would suggest giving the kgo vv a look at i got mine and love it. Theres alot of good reasons to get it one ints 3-6 volts vs the 4.7 volts max on the twist and you can use it while charging it like a pass through. and its 25.99 and you can get the vivi nova tank from the same place for 12.49. it has a lcd screen so you know where your volts are at and it comes with a charger only extra thing i would buy would be the adapter. if you want to see how it vapes with the vv nova and see what it looks like and all that take a look at this. this is a review that i made. last night once you watch it youll know what i mean Kgo vv Battery 3.0-6.0 volts review - YouTube i have a vivi nova tank review to on my channel.
hope this helps
hope this helps