I've been using this system and just upgraded to a G50 for the increased range and durability. I don't think the unit actually sounds any better than the X2 unless you are a big fan of that "cable" tone suck knob.
The unit works 100% fine but the cable should probably be replaced if you jump around a lot. It comes in the original box with paperwork. The belt clip has electrical tape on it to get it to stay on.