Lana Del Rey is better than most MTV stuff nowadays.... yet, it still sounds kinda "over-produced" or something like this to me....
About the singing.... I really don't think you need an AWESOME range to sound great..... there are LOTS of singers who doesn't seem to have a great vocal range but that can manage to imprint very different colors and emotions to their songs....
I like this one a lot:
Although she is very well accompanied, it is a great performance. Too bad her other songs are mostly hip hop stuff....