What is the author's tone in The Art of Courtly Love by Andreas Capellanus?

The tone of The Art of Courtly Love varies from book to book. In Book One, Capellanus is initially at his most scholarly and least opinionated. While he initially praises love, the tone of approval seems modest, which can be explained by the fact that he does not believe his praises, thinking that the costs of love outweigh the benefits.