This is one of my favorite children's books. It is a fun adventure tale with very cool drawings.
In response to some criticism that the princess in the story is not acquired properly, I would just say that it is a fairy tale! Not everything has to be real. And they do send in the proper paperwork, so some attempt is made to show you don't just get to keep children you find in the jungle without telling anyone.
Since my children have a very traditional looking family I think it's nice for them to grow up knowing ours isn't the only option. One thing about the drawings (which I do love), though, is they are very complex for very little kids. My son finds them more interesting as he gets older. I recommend this book for gay and straight families alike.