Help please. I am going to order 2 ecig sets one for myself and one for my mom. I have been reading reviews and researching and now am even more confused then I was to begin with. I cannot afford to spend a fortune and also need units that are easy to use especially for my mom as she is in her late 60's and has COPD so this will be hopefully a huge benefit to her but anything complicated she just will not get. I have seen a lot about liquid, refilling, cleaning ect. What I need is an affordable easy to use unit. I looked at njoy but the cost for 2 would be more then I really can afford. I have seen several that are around $50 each which would be great but am unsure about their ease of use. Can anyone help direct me to a model that will fit my needs and budget. And if refilling is best one that is simple to use the liquid with. I have smoked for 25 years and my mom for around 50.