I'm slogging my way through all the books that have won both the Hugo and Nebula, and I just finished Rendezvous with Rama. I found it enjoyable, albeit lacking conflict. The science was spot on and not too overblown like it is in most modern hard sf pieces, which was very refreshing. I just thought that the characters and plot lacked a lot of depth. I was never worried that something would go wrong. It did evoke a sense of wonder and adventure, another thing that is sorely missing from modern sf. Are the other Rama books worth reading?