I had one for a while, great mod for stealth vaping. If it's a secondary PV I would say go for it, it's great for when you want something small but if it's going to be your primary PV due to the smaller batteries time between charges won't be that great.
Definitely going to be a secondary PV for stealth vaping. I use a provari at home, and a Precise Plus virtually everywhere else. I also have some eGo's and an SD keyring, but I like the idea of having a small VV option on the go. Carrying extra batteries around is not an issue for me, nor is having a voltage read out. I feel I can dial it in to where I like it, without having to know the exact voltage.
Here are a few more questions about the Little Sister:
Does the little sister get hot if used constantly?
Does the voltage output stay the same throughout the battery life?
Is it easy to take apart to replace batteries?
I assume it has a 510 connection, but the website does not say. Is this a correct assumption?
Thanks in advance,
-AJ