It's fantastic. I very much enjoy John Irving. His books end up being similar in theme and contour, but they're usually very enjoyable. And that's one of his best, along with A Prayer for Owen Meany and The World According to Garp. I also love Last Night in Twisted River.
Reading AWFOY rn. Haven't read Irving since highschool, but it's fucking excellent. I shouldn't have waited so long to read more of his shit.