I listened to this story as an audiobook. The funny thing about that is that it's actually the best format for it. The story is actually set as a transcript of tapes that were dropped off for the writer. On the tape, two kids talk about their crazy-sounding adventures with Egyptian gods. So when you are actually listening to two kids talking about what happened, it comes across just the way it should.
The story itself is similar to other books by Riordan. Kids get into an adventure that involves stopping a god, and also travelling through the US. The difference is that on the one hand they are not demigods, and the mythology is Egyptian. Now I'm a great lower of Ancient Egypt, so this was a plus for me.
Overall, this is a great adventure, but I find that I wasn't taken by it as I was with the other books. The characters aren't that complex, and the focus seems to be more on the story and the mythology, than them. That is also why I didn't write about the kids in detail.