To call "KISS Symphony" a mistake would be an understatement equal to calling the Iraq war a bad war, or referring to the current lineup as "KISS". Gene Simmons needed money, so he decided to jump on the orchestral-rock bandwagon embraced by such bands as Aerosmith and Metallica.
Unfortunately, this event, recorded for posterity at a small concert hall in Australia (whatever happened to Madison Square Garden, guys? Aren't you a New York band?) shows that Gene is more interested in money than band unity. After the "Farewell Tour" in 2000 ended, Gene decided that KISS was the easiest way to make more money, but original lead guitarist Ace Frehley, who'd been tricked into leaving the band in 2000, was nowhere to be found, so club-band guitarist Tommy Thayer was obliged to impersonate Ace to keep the project afloat. Thayer's playing is very subpar to Frehley's; he's often off-key and off-tempo, and he has a serious lack of stage presence. Without Frehley, the KISS car has a flat tire, and patching it with Thayer just doesn't help.