It absolutely does work, and it feels amazing on the g-spot with excellent results, but it's also heavy, and it can be awkward. I'd also recommend against using it with a partner, because it is so heavy and firm.
The Pure Wand makes my top ten list, but for internal use, there's one toy I like better -- the amazing Jollie, which stimulates not just the g-spot but absolutely every bit of your insides -- and another I like almost as well -- the SSA Glass Amethyst, which works quite a bit like the smaller end of the Pure Wand. All three of those toys work well for rocking type motions, but if you want thrusting, you'll have to look elsewhere. The Jollies Thrust and the Deep Water G are currently at the top of my list when it comes to thrusting toys.