*** The alchemy between Seven of Nine and the Doctor has no matches. The two are better integrated than any other pair of characters in all of Star Trek history.
*** Music and singing in Star Trek? Such a rare and welcome treat! It doesn't happen frequently (TNG's "The Inner Light" and "Lessons" are fortunate exceptions).
*** Hilarious situations and witty dialogue, especially with the "ambassador" situation as well as beetween Seven and the Doctor.
*** Different, but not all that original after all: TNG's Data's Day, and so on. Never the less, it's a first for Star Trek: Voyager.