Well, I looked at the book at one of the websites and they had two sample pages. It looks a little meh to me. The rhymes on the sample pages were a little weak. Maybe there's a reason it's not available on Amazon, because it's not that good.
A book my husband LOVES and loves to read to the kids is "Guess How Much I Love You". If you don't already have that one it would be good. I did a quick search on Amazon just using "father's love" and there were tons of good books. I went into the parenting and families category and I think lots of them would be appropriate (maybe skip the one about fathers, adolescent daughters and post-war American culture though, ick!)