I've had their stuff. Gene Simmons of KISS was their producer or manager, if I remember correctly. They rocked. Loudness was another J-hair-metal band. I actually liked them better. Mainly because their guitarist, Akira Takasahi, was/is SERIOUSLY talented, but also because they would lighten up on some songs where EZO was all heavy, all the time. "This Lonely Heart" is my favorite Loudness song, while "House of a 1,000 Pleasures" was my fave EZO piece. Either way, give them a listen. You're gonna rock.
Me? I'm just glad I never wore spandex!