I really enjoyed this one for its focus on Mozzie and to give him a little space to be heroic in his own right (seriously, spoiler-free, but he clearly has some moves) and we learn just a little bit more about a character who, while useful, has often been used as a comic relief.
That said, it's something that I truly appreciate about White Collar. Agent Peter Burke's 'straight man' nature is sometimes used for comic effect, but he is never made to seem ridiculous. Nor is he ever a sidekick to Neal Caffery, as he is repeatedly shown to be as extremely competent in his field of law enforcement/investigation as Caffery is in his of con artistry, thieving, and forgery.
This particular story once more highlights that despite his neuroses. Mozzie is extremely competent and remarkably cool under pressure.