I loved this episode, It is one of my favorites of the series so far. If you watch it just for action then you would be disappointed with this episode. But if you like the intensity of the unknown and watching the characters develop more, like I do, then this is an episode that you will very much enjoy.
The tension between Sarah and Cameron grew with Sarah finding out that Riley is dead and being for sure that Cameron is the one that killed her, with John standing up to his mother and defending Cameron.
John began to find his own way, and began to stand on his own two feet in this finally starting the process of becoming John Connor leader of the resistance.