I liked seeing more of Palmer even just for an episode, and I thought he was done well here! I loved his struggles and how useless he felt. Every show has perfect witnesses and here we get to see something more realistic from someone.
Secondly I loved how respectful people were being. Nobody was giving him heaps of shit or being all "oh get over it you lived". Gibbs was being very nice, even at the end. And Ducky was being especially fatherly, even Ziva with her little 'game'.