Juvenal, is by far one of the greatest writers of the Roman era. His biting style and keen insight is a pleasure to read, and has not lost its appeal after the long years since it was written. Many of the subjects that Juvenal lashes at with his sharp wit are still apply today (government corruption and decadence among others).
However, Juvenal clearly wrote his satires for the era of the roman empire, not the 21st century, and his refferences often fly over the reader's head. The translator has done a fabulous job in explaining these details in the copious notes at the back of the book. It is highly suggested that one reads sections of the notes before reading those sections in the satires to gain the greatest understanding.

Juvenal was a misanthrope who looked around at the people he saw in ancient Rome and decided that most people were dishonest, corrupt, obsessed with sex, stupid, cheaters, etc. It's an ugly picture but hard to argue with as people are pretty much the same now. There are some masterly depictions here and some very good common sense, too. Not a pick me up. More like a "pull you down". Still worth reading to confirm your worst suspicions and also as an antidote to much positive thinking nonsense.