egos are very introductory, they put out like 3.6 volts which your gonna be sucking on it until your face is blue just to get puff, look for a 5 volt mod, provari or reo grands are my favorite for a reason, and.. if she liked the ego she will eventually want to get something better, i had three egos all died within acouple months, not reliable dont listen to people on here that are still using egos...they dont put out a lot of vapor without a decent low resistance atomizer, after acouple days it gets weaker...look into getting a bottom feeder perhaps like a reo mini from reosmods, very simple to use and you dont have to mess with tanks or batteries that only last a few weeks, or look at
http://www.e-cigarette-forum.com/forum/general-e-smoking-discussion/www.ecigarette-mods.com....even just a 5 volt box mod from madvapes.com, they even have a variable voltage box mod now for like 35 bucks or something, + acouple 14500 batteries + a charger, and your spending about the same as you would on an ego....