I'm thirty one and feel like I'm pretty hip, so I like to venture into Pitaya once in awhile. Cute stuff, some I might even brave to wear.
Unfortunately, they fall into the "I'm twelve with no hips or chest" category of dressing, and don't carry much in the way of real women's sizing. I'm a 14 on a bad day and nothing there is cut to fit me.
But send your niece in there and she's bound to spend money.