I love using it as a stick. I grated a puck and pressed it into a cleaned empty deodorant twist-up container. It loads on a wet face easily with just a couple of dips in warm water. I get a dense slick lather out of it. I don't go for incorporating a lot of air into my lather, so you might be disappointed if you want to look like the Cella man, but for me, high density is the way to go.
I got williams at my local supermarket. I will pick up a couple of pucks based on your comments. Do you feel williams makes a better lather when used as a shaving stick versus other ways of trying to make a lather with williams?