If you are looking for a best-of collection full of timeless and sing-along songs you are right with this CD.
With altogether 34 titles on this Double-CD-Edition you get a full-service of Def Leppard!, that leaves no wishes open. Only listeners who already own a big amount of Def Leppard CDs it’s recommended not to grab it, because these songs are neither recorded new, nor remastered. And 2 bonus tracks you get only in the limited first edition of the CD.
So even the song material is correct, but a pure and unimaginative join-together of old classics is lacking in ideas, it gets only a „3“.
A good best-of, that is also interesting for collectors, looks different.