I friend of mine bought Dark Side of the Moon, it was great and, as a result, I bought this as my first ever real LP (having had things like "Music for Pleasure" before then, if you remember that).
The original LP has long since warped, but I still have and treasure it, but the music just had to be replaced.
Enough of the personal reminiscences, now a review of the album.
This is absolutely classic Pink Floyd; the opening track, One of these days, is still one of my all time Floyd favourites, couple this with the full 22 minutes of Echos (the old side 2) and this is a winner. The other tracks are just icing on the cake.
You may have guessed that this is biased review from someone who has enjoyed seeing them time after time from the original Dark Side of the Moon tour and has bought each of their 'main' albums.
Buy it, it is vital to your collection !