Unreadable, but very very listenable. These books are amazing on audio tape and fantastic to listen to when going on hikes or runs or whatever. I find there is a very pleasant atmospheric lyricism to Joyce's work that paints a very particular picture of Dublin that is quite fascinating and enjoyable.
Art sometimes is best absorbed rather than understood. Great art can reveal when pressed, but I usually only do that randomly to ensure that there is substance there, and there usually is.