Most critics come away pleased, and a little surprised to be. The praise clusters on the tone: the series is said to have found the pulpy, jet-black comedy of the early seasons rather than the grimness of its later years. The New York setting and the premise of a gathering of serial killers are widely credited with giving the character somewhere new to stand, and the guest cast, Peter Dinklage and Uma Thurman among them, is singled out repeatedly. Michael C. Hall is generally judged to be enjoying himself again.
The reservations gather around the callbacks. Even the warmer reviews admit the fan service edges towards distraction, and the cooler ones find the whole thing frivolous, a lark that lacks the grounding of the previous outing. The spread is wide, from enthusiastic to hostile: Variety is the outlier, arguing the character should have been left to rest and calling the result redundant fanfiction. The Telegraph complains of stock characters and filler.
