I'm on the search some suggestions / opinions,
My Mom, aka Grandma is 74 and has been an analog smoker for many many years... I got her a starter kit a month ago which included k808 style bats. + 6ml nic coffee flavor cartos for it. That is also how I started out and fully "Switched" 4 months ago. She has indicated she likes it, claims she uses it a tiny bit each day. I asked her about trying a new flavor yesterday, she listed off a few which was great to hear.
Pre-filled ready to go cartos are super easy, I feel the taste is ok but the duration of them varied alot for me, I felt cheated in that sense when I was going through them, they do not last as long as they advertise. I ended up dripping juice into them but that gets real tiring, so upgraded a bit at this time.
I don't know if she can do this herself but If she could fill up a top herself, whats the easiest top out there to fill with juice?