I liked part one of the first episode but it seemed to me like Gillian Anderson's acting seemed a teeny bit depressed. She has always played Scully straight laced and monotoned, which she's always been great at performing, but it seemed like she was a tad subdued this time around--like she was silently saying why was she reprising the role again. It's probably my imagination.
SPOILER ALERT!
I thought Sveta's assassination was somewhat overkill. One of my favorite parts was Sveta telling Scully she didn't know about being abducted, looking closer into Scully's eyes, and immediately saying that perhaps Scully does know what it feels like to be abducted.