Finished it after spending about 4 hours this morning reading the last 150 or so pages. I've found that Niven and Pournelle are able to reshape the way I think about a lot of things. They have a knack for painting a realistic scenario both in the distant future as in "The Mote in God's Eye" but also in the recent book I just finished, "Lucifer's Hammer". I realized that if a comet hit the planet, I'd probably be one of the first ones to go down. In "The Mote", they stretched my horizons by helping to me to see more of what makes me human.
Interestingly, they did deal with religion in the context of other species. Religion and even Christianity doesn't fall apart when man is no longer the only sentient being in the galaxy. But the authers make a point I've been aware of since teaching Faith and Science, the worldview of progressive history (human) versus cyclical history (the Moties) affects the central perspective of your religion.