Unimpeachable, obviously. I always feel like it should be a Total Eclipse-esque 7-12 minute epic rather than the tidy 3.37 it actually is.
Video is also quite funny/problematic in that they very obviously wanted to make it seem like the thinner, prettier sister was the star despite the dark haired one being on lead.
My other Heart fave is SULTRY GEM There's The Girl, which actually does feature the blonde sister on lead vocals.