Overall: An OK story that felt a bit rushed. Both this and “Can You Hear Me?” might have been better served as two-parters. The half-finished Cyberman was an interesting look.
The Eighth Doctor arrived in Geneva on the same night this episode takes place (The Company of Friends: "Mary's Story"), and Mary Shelly later became the Doctor's companion for three adventures. He later recalled those adventures while travelling with Charlotte Pollard, yet the 14th Doctor (by my count) doesn't remember. I know BBC TV is not beholden to follow Big finish audio continuity (hell, it barely follows it's own), but I'm trying to concoct a situation in which both of these timelines "happened." I'm not quite there yet.