I saw them live a long time ago - they were touring with the Foo Fighters in support of Californication, so that, plus the fact that back then the Foo Fighters were an opening act and not the headliner should date it about 10 years or so, and it was one hell of a good show. But their new music just doesn't do it for me. The songs aren't particularly good, but they're catchy. Don't really like the new single Adventures of Raindance Maggie, but the bass line is catchy as hell and it gets stuck in my head. RHCP's best years have come and gone IMO.
Foo Fighters + late 90s Chili Peppers = an excellent show. Wish I could see that again.