This guy was posting in another thread, that he will make and sell a 105mW Blue Ray, and i asked him if 105mW isn't done with overdriven HD-DVD diodes.. Then he started this thread.
He was always acting in the typical scammer fashion. That secrecy of his was very telling. And he obviously used a triple element glass AixiZ lens for this laser, which means he had to push it much higher to reach 120mW, than he would with a clear acrylic, because that lens is AR coated for reds.. If he used a clear acrylic, he might have gotten away with 120mW.
Back then no one knew 120mW was possible to reach with a HD-DVD diode, but i remember him posting in the HD-DVD thread, that he got those diodes, shortly before starting all this.
The fact, that he has a good feedback, doesn't mean much, other than he obviously managed to get away with it so far. You should try to get your entire money back. Not just a new diode. You can get the same laser for under $200, except that it won't be overdriven..