This album is great. And that is something you know since it begins. The last track is also marvellous, so full of joy and energy. And what to say about "Stairway to Heaven", maybe one of the best songs ever made. This Led Zeppelin album is a wonderful record. But it is not flawless. And it is something that may be controversial due to how highly acclaimed this album is. It is a masterpiece, and it has many great, even magnificent songs. But others are not that work of art. For me, the follow-up, Houses of the Holy, is the real masterpiece of Led Zeppelin, although this album has some of their best songs, and two of the greatest ever made. It is fantastic, as a record, it works really well the way it is... it flows so quick yet it gives you such energy. And every song is really good at the least, do not get me wrong. The only conflict I find with this album is how great some songs are and how they opaque other less magnificent tracks. Some are very big, really outstanding, and the album does not favour every single song, at least the way the tracklist is distributed. I do not think, however, that any other order would be better, just that some songs are not very outstanding. Sure, there is a bit of an eclectic feeling that I love, how it turns semi-medieval at "The Battle of Evermore", how hard-rock "Black Dog" is, and how pastoral "Going to California" feels (also, a very Led Zeppelin sounding track). It is amazing to find such beautiful songs and that sound only Led Zeppelin delivers the way Led Zeppelin can and do... they are one of the best in music, great and wonderful musicians, so powerful and full of emotion. And that is why I would love to say that this album is flawless, but I cannot say so. What I know is that they prove they are that ten out of ten in other albums, and that this one is, still, one of the greatest rock records of all time. Not anyone can do a "Starway to Heaven" nor any band can do a Led Zeppelin IV. And, even if it is not flawless, this album is just how great they can be. Led Zeppelin doing their thing, making great music. That is all. This album is fresh and bold, and, even in those little details in which it lacks of something else, it is still an album that is a grandiose stone in the history of rock and roll.