Our 35BH with same shade doesn't seem to rattle much, but can't really tell yet, as the rattle and wind noise from the large window by the dinette drowns all the other noises out (the XG of course doesn't have the same setup there). The generator is quiet with just a nice hum.
Only a few issues with the rig after three months and 3K miles, and if I can ever get the dealer to register the warranty with Thor will get it fixed up at the factory.
We're enjoying it so far, but like many here the complete lack of competent dealer service just drains your soul after such a large purchase, and it seems most simply don't care. Whatever you do...DO NOT sign an arbitration clause with any dealer