The updated Ren'ai Revolution is...okay. It's not bad, and at least it's not like the 13nin version from the 4th album, where they kept the original backing track and just erased Nakazawa's voice and pasted in Ogawa where appropriate. But I do agree with Estrea that it's pretty...safe?
And it sounds like the "Woo, love revolution" backing vocals are just cut and pasted from the original recording. C'mon, Tsoonk.