It is definitely right up there...an important must read.
There are books that I think are important because of their literary merits. Others because they capture a moment in time (One for me the The Electric Kool Aid Acid Test, not fiction, I know, but still) or earned place in history because of their immediate influence (like Uncle Tom's Cabin). A few works manage to do all three. They are very rare. Off the top of my head without thinking deeply, Young Werther by Goethe is one that might qualify. Some might call Ulysses one of those. I'm not sure.