In this episode, Sam does a leap switcheroo between the hitman (that he originally leaped into) and the Mafia don. The hitman doesn't remember anything from being in the waiting room. Is that what happens to everyone that Sam leaps into? If so, wouldn't they be curious about why they don't remember certain events? In the "Lee Harvey Oswald" episode, when Lee leaped back to his life, it shows him shooting JFK without missing a beat (i.e. no disorientation). I guess an explanation could be found in the fact that Sam and Lee mixed personalities (or whatever lame explanation they came up with in that episode).

Al says that Ziggy has shut down all non- essential systems to save energy. This includes the heating and air conditioning, making the it hot during the day and cold at night. Doesn't the project have some sort of manual override for these systems?

This episode marks the first time that Sam seems to give thought to what the person into whom he has leaped will do after he leaves. In this case, Sam arranges (as Don Geno) for Frankie and Teresa to get together, but then must think of a way to ensure that Don Geno will be compelled to follow Sam's lead. This is bright of him. But for the rest of Season One he doesn't seem to worry about this.