I had a play with this command and it worked really well. You need to know the location the location of your model very accurately. Of course you can use Google Earth to find the accurate location of you site.
This might sound like just some fun. But there is more to it than that. You could email your client the exported file. They can open the file in Google Earth which will show them the house in 3D on their site. They can turn around and look at the house from any angle.
Your clients can look at your designs wthout using VectorWorks.