My personal belief is that Twin Towers is not as good as the other two books. Maybe it's because I just wanted to get through it and get to the ROTK. I am in the process of going through the books again. I will slow it down and probably enjoy it more, therefore getting more out of it, this time, but ROTK is wonderful. Enjoy! Warning, however, once you are done, you feel a bit lost. There is just no other body of written works that are as wonderful as the LOTR series. There are some wonderful stories, but Tolkien gets you so caught up in this world that it leaves you wanting more.
Yes i think that your rite, about the fact that i will seem lost. Right now even finishing the fellowship of the ring it feels like i would read no book like it.