I liked it better than last week's episode. I loved when Henry kept ruining Shawn's intended reveals. The wearing of the giant T-rex head was great, both in the show and the outtakes.
And I liked that they made Lassiter appear really good at his job. With a gimmick like this show's, you're in danger of making the police characters look incompetent compared to Shawn. Plus, Lassiter's always so sad when Shawn solves a case; it's nice to see him successful and happy sometimes–and to give Shawn a little competition.