I myself started with an xhale02 from 7-11 and quickly changed to an ego. The issue is my friends mother has to change to a e-cigarette since her housing community has banned smoking. She is for the most party totally blind, she can see a little but its bad and there is no way she will be able to drip or even refill her own carts. She wants something that feels like a real cigarette like the one I have from xhale02 but those are not at all compatible with any of the parts i see from retailers. Any ideas on a unit that is reasonably priced and easy to find filled replacement cartos for? thank you in advance