Enjoy the ride! I still reread the first 5 every few years. They just get richer with time, especially the last couple. They seemed bizarre the first time I binged them but they make sooooo much more sense on rereads.
They are SO bizarre so far. I noticed the appendix seems to give a bunch of extra information on the various factions/organizations in the universe. My question, do you think it's worth doing more research on the universe beforehand or go blind for my first read?