I picked up Christian Perfection and Contemplation the other day and started reading it. I'm finding that G-L is not exaclty the evil neoscholastic that he is sometimes painted to be. For instance, he is every bit as insistant as Servais Pinckaers that St. Thomas's moral theology is distorted by the manuals and later commentaries. Also, he actually admits the value of secular psychology even by unbelievers, so long as it stays in its area of competency. I don't know. I wasn't expecting this.
Admittedly, I haven't read his stuff on nature and grace in detail yet.