Some parts were a bit slow or drawn out for my tastes, and I think part of me missed the journey of real kids from our world traveling to Narnia. Some of the magic was lost for me. This was also the most violent of the books so far. But overall I liked it, and I love Aslan in it. He seemed to be more involved in interceding and protecting than in other stories (with the exception of his crucifixion in The Lion, the Witch & the Wardrobe, of course).

Some favorite parts:

"'If you run now, without a moment's rest, you will still be in time to warn King Lune.'
Shasta's heart fainted at these words for he felt he had no strength left. And he writhed inside at what seemed the cruelty and unfairness of the demand. He had not yet learned that if you do one good deed your reward usually is to be set to do another and harder and better one. But all he said out loud was:
'Where is the King?'"

Spoiler:
"'I was the lion.' And as Shasta gaped with open mouth and said nothing, the Voice continued. 'I was the lion who forced you to join with Aravis. I was the cat who comforted you among the houses of the dead. I was the lion who drove the jackals from you while you slept. I was the lion who gave the Horses the new strength of fear for the last mile so that you should reach King Lune in time. And I was the lion you do not remember who pushed the boat in which you lay, a child near death, so that it came to shore where a man sat, wakeful at midnight, to receive you.'"

"...they were going in single file along the edge of a precipice and Shasta shuddered to think that he had done the same last night without knowing it. 'But of course,' he thought, 'I was quite safe. That is why the Lion kept on my left. He was between me and the edge all the time.'"