I actually didn't like that episode all that much. The fact that it was "just a dream" made me feel like they'd wasted their time because nothing much got resolved - about five episodes into the third season, everything was back to the original status quo with no sign of any lasting changes from House's personal revelations. Moreover, the sloppy medicine in House's leg still irritates me. While the ketamine treatment could conceivably help with his pain management, it wouldn't restore the lost muscle in his thigh, so it wouldn't let him walk normally.

I won't deny the acting was top-knotch, and the actors did a wonderful job with what they were given. But I don't think what they were given was very good to begin with.