I liked the episode and I love it when Regina is in full on Evil Queen mode. My one issue is the scene between her and Henry, it seemed so bizarre and out of place. They may as well have had her turn to the camera and say, "Hello audience, this is my evil plan." I can only assume that at some point the magic will fail and Henry will remember what she told him, but it seemed a clumsy way to do it.
And it's always a pleasure to see badass Snow.