The ending.... :| 
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 Why there is no happy romance?? Did you have bad experience with romance?? Only Roran who happy enough. Not Eragon, nor Murtagh. 
 And Arya become the Queen? Not only you removing Arya and Eragon's chance but also make Arya a bad rider because she is having power. 
 And Murtagh and Nasuada, why you give up even before anything happen???? 
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 While the story is good, the ending make me forget what is the goodness. No I am just kidding. The story is very good, the revealance of every mistery with only one fact, it is amazing. 
 Still Angela is as mysterious as ever. 
 And the fight with galbatorix... I knew it will be something like that, but I was hoping Shruikan... 
 And the urgal conclusion.. How it can stop their hot blood? 
 Anyway, after 4 long book, and journey over the years, since saphira is an egg, till she mate, *now that's remind me, this book should have the date, I lost track of alagaesia time* all is over. Eragon is gone. 
 Still, Paolini promises Alagaesia not gone yet. Well, I think we need to wait over 10 years again before the next story *sarcasm*