Didn't find it as engaging as Episode 1, though part of that might be due to playing both back to back. Again the Antlion parts get a little repetitive but the story parts were decent. I wish we got to see more of Eli and Dog (though the followup to Alyx could fix that). Also the last mission is literally the same as the one for Simpsons Hit and Run. All together a great package.
Can't imagine the agony of waiting over 10 years for the continuation (both official and Epistle 3).