@Slaw & @Reubent,
Yes, Tattoo You has a lot of great tracks. They are more complex than the Stones I remember.
No Use in Cryin' qualifies as a classic.
The soundstage in Slave is huge and busy as hell with the hammond, sax, drums, vocals, guitar, percussion, etc.
You can tell Bob Ludwig had a hand in it.
Tonight, same era..but mellowing out at bit with Ten Years After - "A Space in Time".