I think this is going to be great for him, because it shows off a completely different side of his acting than what we've seen recently. People don't really think of Raúl as a comedic actor. Mamet certainly isn't your traditional comedy, but I think it plays funny as hell. I thought Piven and Moss were great as well, but Raúl definitely steals the show.
I definitely enjoy the play in performance a lot more than I do on paper, but I agree; it doesn't have the weight and emotional pull that I like to see when I go to the theater. But, it's a good time. I look forward to seeing it again as it tightens up, and I hope it's well received.
A work of art is an invitation to love.