I loved "Drone". I thought Jeri Ryan was excellent in it. Did you by any chance recognize the actor who played One? He was also the main holographic Nazi dude in "The Killing Game", as well as a Cardassian on DS9. Needless to say, I much preferred him as One. He was adorable, and I wish he'd had a longer story arc. Unfortunately, he suffered from Too-Awesome-to-Live Syndrome.
I enjoyed his conversation with the Doc. "I wish to hear the story. NOW." And, "I see you have your mother's sense of humor."
Although he was no doubt relieved to have his emitter back, I think the Doc would have gladly learned to live without it if it meant keeping One alive.