If it's the one sold by NHaler in their 510 section, sounds like it's a small 510 package with one battery and cig pack form factor PCC. Drew at NHaler would answer any PM trying to find out more about it; he's an up-front person, tends to carry decent products. Battery run time, inability to use lower ohm cartos (like Boge 2 ohm), the need to pick up at least one extra battery (for when the first one is discharged) would be the things I'd think about.
If your friend smokes more than a handful of cigs a day, and if she can deal with a manual fat batt, the Riva is a better price point.
Alternately, the Varivolt 900 mAh that NHaler has on the same page is pretty decent looking, though that would be treated as the third, backup battery -- still need a base kit to get the eGo/Riva-class charger. An LF base kit, plus the varivolt to be able to try higher voltages, is a sweet combo, for a new person. (LF likely also has varivolts now, I haven't looked). I believe NHaler's CC is smoke5 or smoke05 -- 5% off. It should be posted in the NHaler forum.