I liked the parallelism between this episode and the "alternate reality" episodes that were on before it. The people of Terra Prime were the "reality" version of Archer and his crew in the alternate reality.
I loved it when T'Pol pointed out that Paxton was a hypocrite. I found that rather interesting that he was condemning the very thing that was saving his life.
I liked the interaction between T'Pol, Trip and Elizabeth. It is sad that Elizabeth was specifically created with a defect that would kill her.
I wish that Phlox had been able to save her.