Bored of Kafka on the Shore in the last quarter, is the ending worth continuing?

I've been reading "Kafka on the Shore" by Haruki Murakami. I ploughed through the first 3/4 of the book but now I'm on page 478 out of 615 it's very much gone downhill for me.

Is the ending worth it? I'm reading the French translation, sorry if the characters have different names.