SAHB were at their best live and "Live" is a defining moment of the 1970s. Live is a huge step forward in the experiance of a live record with good album tracks becoming classic live music. You will not find a bad moment on this record. Penthouse Tapes has its moments but though it is played and produced well the material is not the strongest. Live 5 out of 5, Penthouse tapes 3 out of 5. Still a must have for any Alex Fans.