I always used to think that the roaring 20's were a glitzy, glamorous, and beautiful time period. The first world war had just ended and America was filled with optimism. It was the "party decade". (If only they knew about the stock market crash and Great Depression to come). However, when I read the Great Gatsby, I saw that the upper-class society of the time was incredibly greedy and had materialistic values, whereas the real human values of friendship, family, and love were forgotten about. Therefore, I believe that, on the surface, the 20's may seem like a fun, exciting time, but if you take a close look, there were deep issues in society.
By the way, if anyone is considering reading The Great Gatsby, do it. You won't be disappointed. I have also seen the new Gatsby movie and it is also fantastic.