SPOILER ALERT IF YOU HAVE NOT WATCHED THE EPISODE YET
Wow, what an episode! I had an inkling that House and Thirteen were going to alone with the hostage taker, but I did not see Thirteen regaining her will to fight her Huntington's, nor the whole Cuddy/House relationship thing seemingly taking a step forward(?).
That had action, and plenty of House's classic wit. I like!
Although, I still am really baffled as to House giving the gun back to the guy. That seems so unplausible, that I couldn't even fathom House doing it to get a diagnosis.